Clarify what <package-name> is

Author: danielbachhuber

_posts/2016-10-25-version-0.25.0.md

@@ -41,7 +41,7 @@ The WP-CLI community has been quite active in creating new tools for you to use
 * [trepmal/wp-revisions-cli](https://github.com/trepmal/wp-revisions-cli) - Manage revisions.
 * [welaika/wp-cli-db2utf8](https://github.com/welaika/wp-cli-db2utf8) - Downgrade db encoding of a new WP installation to UTF8.
 
-Install any one of these with `wp package install <package-name>`. When you do, go say thanks to the author!
+Install any one of these with `wp package install <package-name>` (where `<package-name>` is typically the `<user>/<repo>`). When you do, go say thanks to the author!
 
 ### More ways to install WP-CLI packages