Standardize descriptions.

.horde.yml

@@ -3,7 +3,7 @@ id: Autoloader_Cache
 name: Autoloader_Cache
 full: Caching library for Horde_Autoloader
 description: |
-  Extension of the Horde_Autoloader that implements caching of class-file-maps. The caching method is determined automatically from the list of supported cache backends: APC, XCache, eAccelerator, local file system.
+  An extension of the Horde autoloader that implements caching of class-file-maps. The caching method is determined automatically from the list of supported cache backends: APC, XCache, eAccelerator, local file system.
 list: dev
 type: library
 homepage: https://www.horde.org/libraries/Horde_Autoloader_Cache