updating the README

Author: weaverryan

README.md

@@ -1,5 +1,15 @@
-Carson Issue Butler
-===================
+The Carson Issue Butler
+=======================
 
-Carson keeps things organized in the kitchen, the library, and your open
-source repository.
+Carson is a bot that currently runs on the [symfony/symfony](https://github.com/symfony/symfony)
+repository. His job is to help automate different issue and pull request
+workflows.
+
+For an introduction, read: http://symfony.com/blog/calling-for-issue-triagers-a-new-workflow-and-the-carson-butler
+
+Currently, Carson's super powers are used to automatically label issues based
+on comments from people in the community. This gives anyone the power to review
+an issue or pull request and comment to update its status. If Carson does his job
+well (i.e. if it's useful), more features may be added on the future.
+
+For details on how this review / label process works, see http://symfony.com/doc/current/contributing/community/reviews.html