add link to install page and live example and fix typo

README.md

@@ -1,9 +1,11 @@
-DiscussionAbout is a [Vanilla Forums](http://vanillaforums.org/) plugin that lets you associate Vanilla discussions to a non-Vanilla item in your database of your choosing. For example, if you have "articles" in your database users can:
+[DiscussionAbout](http://vanillaforums.org/addon/discussionabout-plugin-1.0) is a [Vanilla Forums](http://vanillaforums.org/) plugin that lets you associate Vanilla discussions to a non-Vanilla item in your database of your choosing. For example, if you have "articles" in your database users can:
 
 - Create a discussion about an article by visiting /yourforum/post/?article=123.
 - See in the recent discussions list, category discussions list, and individual discussion page which article each discussion is about (with the article's title!)
 - See a list of discussions about an article by visiting /yourforum/?article=123, or see a list of discussions about an article by a particular author by visiting /yourforum/?author=456.
 
+[See a live example!](https://greasyfork.org/forum/)
+
 ## Requirements
 
 - Vanilla 2.1
@@ -13,7 +15,7 @@ DiscussionAbout is a [Vanilla Forums](http://vanillaforums.org/) plugin that let
 1. Add a foreign key to GDN_Discussion pointing to the table containing the items you want to have discussions about.
 2. Install the plugin (but don't enable yet!)
 3. In the plugin's folder, copy config-example.php to config.php.
-4. Edit the configuration in config.php. Relevant document is in there.
+4. Edit the configuration in config.php. The relevant documentation is in there.
 5. Enable the plug-in.
 
 ## License