Fix whitespace in README

Also ensure consistent style in API section

README

@@ -363,7 +363,7 @@ API CHANGES BETWEEN 3.4 AND 3.5
 - alpm_trans_get_flags()
 - error codes:
     PM_ERR_DISK_SPACE, PM_ERR_WRITE
-- flags
+- flags:
     PM_TRANS_FLAG_NODEPVERSION, PM_TRANS_EVT_DISKSPACE_START,
     PM_TRANS_EVT_DISKSPACE_DONE, PM_TRANS_CONV_SELECT_PROVIDER,
     PM_TRANS_PROGRESS_DISKSPACE_START, PM_TRANS_PROGRESS_INTEGRITY_START
@@ -419,7 +419,7 @@ API CHANGES BETWEEN 3.5 AND 4.0
   - alpm_release
   - alpm_remove_pkg
   - alpm_sync_sysupgrade
-- several structs are no longer opaque
+- several structs are no longer opaque:
   - alpm_conflict_t
   - alpm_delta_t
   - alpm_depend_t
@@ -431,19 +431,33 @@ API CHANGES BETWEEN 3.5 AND 4.0
 
 [ADDED]
 - option functions:
-    alpm_{get,set}_eventcb(), alpm_option_{get,set}_convcb(),
+  - alpm_{get,set}_eventcb()
-	alpm_option_{get,set}_progresscb()
+  - alpm_option_{get,set}_convcb()
+  - alpm_option_{get,set}_progresscb()
 - package signing functions:
-    alpm_option_get_default_siglevel(), alpm_option_set_default_siglevel(),
+  - alpm_option_get_default_siglevel()
-    alpm_option_get_gpgdir(), alpm_option_set_gpgdir(), alpm_db_get_siglevel(),
+  - alpm_option_set_default_siglevel()
-    alpm_siglist_cleanup(), alpm_db_check_pgp_signature(), alpm_pkg_check_pgp_signature(),
+  - alpm_option_get_gpgdir()
-    alpm_pkg_get_origin(), alpm_pkg_get_sha256sum(), alpm_pkg_get_base64_sig()
+  - alpm_option_set_gpgdir()
+  - alpm_db_get_siglevel()
+  - alpm_siglist_cleanup()
+  - alpm_db_check_pgp_signature()
+  - alpm_pkg_check_pgp_signature()
+  - alpm_pkg_get_origin()
+  - alpm_pkg_get_sha256sum()
+  - alpm_pkg_get_base64_sig()
 - list functions:
-    alpm_list_to_array(), alpm_list_previous()
+  - alpm_list_to_array()
+  - alpm_list_previous()
 - structs:
-    alpm_backup_t, alpm_file_t, alpm_filelist_t
+  - alpm_backup_t
+  - alpm_file_t
+  - alpm_filelist_t
 - enums:
-    alpm_siglevel_t, alpm_sigstatus_t, alpm_sigvalidity_t, alpm_pkgfrom_t
+  - alpm_siglevel_t
+  - alpm_sigstatus_t
+  - alpm_sigvalidity_t
+  - alpm_pkgfrom_t
 - error codes:
     ALPM_ERR_DB_INVALID, ALPM_ERR_DB_INVALID_SIG, ALPM_ERR_GPGME,
     ALPM_ERR_PKG_INVALID_CHECKSUM, ALPM_ERR_PKG_INVALID_SIG, ALPM_ERR_SIG_INVALID,
@@ -470,10 +484,10 @@ API CHANGES BETWEEN 4.0 AND 4.1
   - alpm_db_unregister_all -> alpm_unregister_all_syncdbs
   - alpm_db_readgroup -> alpm_db_get_group
   - alpm_db_set_pkgreason -> alpm_pkg_set_reason (handle parameter removed)
-- alpm_time_t typedef used for all times
+- alpm_time_t typedef used for all times:
   - members of alpm_pgpkey_t
   - return types of alpm_pkg_get_builddate and alpm_pkg_get_installdate
-- delta options now use required ratio rather than on/off
+- delta options now use required ratio rather than on/off:
   - alpm_option_get_usedelta -> alpm_option_get_deltaratio
   - alpm_option_set_usedelta -> alpm_option_set_deltaratio
 
@@ -490,18 +504,18 @@ API CHANGES BETWEEN 4.0 AND 4.1
   - alpm_db_usage_t
   - alpm_db_set_usage()
   - alpm_db_get_usage()
-- wrapper functions for reading mtree files
+- wrapper functions for reading mtree files:
   - alpm_pkg_mtree_open()
   - alpm_pkg_mtree_next()
   - alpm_pkg_mtree_close()
-- utility functions
+- utility functions:
   - alpm_pkg_find()
   - alpm_pkg_compute_optionalfor()
   - alpm_filelist_contains()
-- types
+- types:
   - alpm_time_t
   - alpm_errno_t
-- flags
+- flags:
     ALPM_EVENT_OPTDEP_REQUIRED, ALPM_EVENT_DATABASE_MISSING,
     ALPM_EVENT_KEYRING_START, ALPM_EVENT_KEYRING_DONE, ALPM_EVENT_KEY_DOWNLOAD_START,
     ALPM_EVENT_KEY_DOWNLOAD_DONE, ALPM_PROGRESS_KEYRING_START
@@ -513,7 +527,7 @@ API CHANGES BETWEEN 4.1 AND 4.2
 [CHANGED]
 - alpm_filelist_t - removed member resolved_path
 - alpm_filelist_contains - now returns alpm_file_t
-- event callback
+- event callback:
   - alpm_event_t renamed to alpm_event_type_t
   - alpm_event_t union added
   - alpm_event_cb now takes only an alpm_event_t parameter
@@ -523,7 +537,7 @@ API CHANGES BETWEEN 4.1 AND 4.2
     alpm_event_pacsave_created_t, alpm_event_pacorig_created_t added
   - ALPM_EVENT_*_START -> ALPM_EVENT_PACKAGE_OPERATION_START
   - ALPM_EVENT_*_DONE -> ALPM_EVENT_PACKAGE_OPERATION_DONE
-- question callback
+- question callback:
   - alpm_question_t renamed to alpm_question_type_t
   - alpm_question_t union added
   - alpm_cb_question now takes only an alpm_question_t parameter
@@ -532,30 +546,30 @@ API CHANGES BETWEEN 4.1 AND 4.2
     alpm_question_select_provider_t, alpm_question_import_key_t added
 
 [ADDED]
-- memory management
+- memory management:
   - alpm_fileconflict_free()
   - alpm_depmissing_free()
   - alpm_conflict_free()
   - alpm_dep_free()
-- database usage
+- database usage:
   - alpm_db_usage_t
   - alpm_db_set_usage()
   - alpm_db_get_usage()
-- assume installed
+- assume installed:
   - alpm_option_get_assumeinstalled()
   - alpm_option_add_assumeinstalled()
   - alpm_option_set_assumeinstalled()
   - alpm_option_remove_assumeinstalled()
-- using noupgrade/noextract
+- using noupgrade/noextract:
   - alpm_option_match_noupgrade()
   - alpm_option_match_noextract()
-- utility functions
+- utility functions:
   - alpm_dep_from_string()
   - alpm_pkg_should_ignore()
   - alpm_decode_signature()
   - alpm_extract_keyid()
-- flags
+- flags:
-  - ALPM_EVENT_RETRIEVE_DONE, ALPM_EVENT_RETRIEVE_FAILED, ALPM_EVENT_PKGDOWNLOAD_START,
+    ALPM_EVENT_RETRIEVE_DONE, ALPM_EVENT_RETRIEVE_FAILED, ALPM_EVENT_PKGDOWNLOAD_START,
     ALPM_EVENT_PKGDOWNLOAD_DONE, ALPM_EVENT_PKGDOWNLOAD_FAILED, ALPM_EVENT_OPTDEP_REMOVAL,
     ALPM_EVENT_PACNEW_CREATED, ALPM_EVENT_PACSVAE_CREATED, ALPM_EVENT_PACORIG_CREATED
 
@@ -565,13 +579,13 @@ API CHANGES BETWEEN 4.2 AND 5.0
 
 [REMOVED]
 - alpm_siglevel_t - removed members ALPM_SIG_PACKAGE_SET, ALPM_SIG_PACKAGE_TRUST_SET
-- removed .pacorig generation
+- removed .pacorig generation:
   - ALPM_EVENT_PACORIG_CREATED
   - alpm_event_pacorig_created_t
   - alpm_event_t.pacorig_created
 
 [ADDED]
-- hook support
+- hook support:
   - alpm_option_get_hookdirs()
   - alpm_option_set_hookdirs()
   - alpm_option_add_hookdir()
@@ -581,14 +595,14 @@ API CHANGES BETWEEN 4.2 AND 5.0
   - ALPM_EVENT_HOOK_START, ALPM_EVENT_HOOK_DONE
   - ALPM_EVENT_HOOK_RUN_START, ALPM_EVENT_HOOK_RUN_DONE
   - ALPM_ERR_TRANS_HOOK_FAILED
-- different database extension support
+- different database extension support:
   - alpm_option_get_dbext()
   - alpm_option_set_dbext()
-- pkgbase accessor
+- pkgbase accessor:
   - alpm_pkg_get_base()
-- transaction events
+- transaction events:
   - ALPM_EVENT_TRANSACTION_START, ALPM_EVENT_TRANSACTION_DONE
-- database unlocking
+- database unlocking:
   - alpm_unlock()
 
 
@@ -598,7 +612,7 @@ API CHANGES BETWEEN 5.0 AND 5.1
 [CHANGED]
 - alpm_errno_t - added member ALPM_ERR_OK
 - alpm_siglevel_t - value of ALPM_SIG_USE_DEFAULT changed
-- functions using bitfields return/pass an int instead of an enum
+- functions using bitfields return/pass an int instead of an enum:
   - alpm_option_get_default_siglevel()
   - alpm_option_set_default_siglevel()
   - alpm_option_get_remote_file_siglevel()
@@ -615,19 +629,19 @@ API CHANGES BETWEEN 5.0 AND 5.1
   - alpm_option_set_local_file_siglevel()
 
 [ADDED]
-- overwrite support
+- overwrite support:
   - alpm_option_get_overwrite_files()
   - alpm_option_set_overwrite_files()
   - alpm_option_add_overwrite_file()
   - alpm_option_remove_overwrite_file()
-- download timeout control
+- download timeout control:
   - alpm_option_set_disable_dl_timeout()
-- access make/checkdepends info
+- access make/checkdepends info:
   - alpm_pkg_get_checkdepends()
   - alpm_pkg_get_makedepends()
-- check pacman capabilities
+- check pacman capabilities:
   - alpm_capabilities()
-- duplicate and add to list
+- duplicate and add to list:
   - alpm_list_append_strdup()
 
 
@@ -635,7 +649,7 @@ API CHANGES BETWEEN 5.1 AND 5.2
 ===============================
 
 [REMOVED]
-- package delta support
+- package delta support:
   - alpm_delta_t
   - alpm_event_delta_patch_t
   - alpm_event_t union - removed alpm_event_delta_patch_t
@@ -662,7 +676,7 @@ API CHANGES BETWEEN 5.2 AND 6.0
 [REMOVED]
 - ALPM_EVENT_PKGDOWNLOAD_START, ALPM_EVENT_PKGDOWNLOAD_DONE, ALPM_EVENT_PKGDOWNLOAD_FAILED
 - ALPM_ERR_PKG_REPO_NOT_FOUND
-- old TotalDownload implementation
+- old TotalDownload implementation:
   - alpm_cb_totaldl
   - alpm_option_get_totaldlcb()
   - alpm_option_set_totaldlcb()
@@ -673,28 +687,28 @@ API CHANGES BETWEEN 5.2 AND 6.0
 - alpm_db_search() now has an additional parameter and returns success status
 - ALPM_EVENT_RETRIEVE_* -> ALPM_EVENT_DB_RETRIEVE_* and ALPM_EVENT_PKG_RETRIEVE_*
 - alpm_cb_download pass event and data
-- multi architecture support
+- multi architecture support:
   - alpm_option_get_arch() -> alpm_option_get_architectures()
   - alpm_option_set_arch() -> alpm_option_set_architectures()
 - alpm_db_get_servers() copies parameter data
 
 [ADDED]
-- parallel download support
+- parallel download support:
   - alpm_option_set_parallel_downloads()
   - alpm_option_get_parallel_downloads()
-- file download events
+- file download events:
   - alpm_download_event_type_t
   - alpm_download_event_init_t
   - alpm_download_event_progress_t
   - alpm_download_event_completed_t
-- download misc
+- download misc:
   - ALPM_DOWNLOAD_RETRY
   - alpm_download_event_retry_t
   - alpm_event_pkg_retrieve_t
-- multiarchitecture support
+- multiarchitecture support:
   - alpm_option_add_architecture()
   - alpm_option_remove_architecture()
-- misc
+- misc:
   - alpm_pkg_get_sig()
 - callbacks add front-end provided context
 
@@ -713,13 +727,13 @@ API CHANGES BETWEEN 6.0 AND 6.1
 - alpm_transflag_t - added ALPM_TRANS_FLAG_NOHOOKS
 
 [ADDED]
-- extensible package data type
+- extensible package data type:
   - alpm_pkg_xdata_t
   - alpm_pkg_get_xdata()
-- accessor functions
+- accessor functions:
   - alpm_db_get_handle()
   - alpm_pkg_get_handle()
-- cache server support
+- cache server support:
   - alpm_db_get_cache_servers()
   - alpm_db_set_cache_servers()
   - alpm_db_add_cache_server()
@@ -729,7 +743,7 @@ API CHANGES BETWEEN 6.1 AND 7.0
 ===============================
 
 [ADDED]
-- sandbox functions
+- sandbox functions:
   - alpm_option_get_sandboxuser()
   - alpm_option_set_sandboxuser()
   - alpm_option_set_disable_sandbox()