diff --git a/README.mkd b/README.mkd
index 0767e5f..11d7dd6 100644
--- a/README.mkd
+++ b/README.mkd
@@ -2,14 +2,16 @@
 
 This is an Arcanist extension providing a mechanism for implementing external
 Linter tools. The extension allows linter tools to emit JSON-serialized
-violation messages to standard output.
+violation messages to standard output. See
+[Phabricator T9827](https://secure.phabricator.com/T9827) for the original
+motivation behind this extension.
 
 ## Installation
 
 First add this repository as a submodule of the project,
 
 ```
-$ git submodule add https://github.com/tagview/arcanist-extensions.git .arcanist-external-json-linter
+$ git submodule add https://github.com/bgamari/arcanist-external-json-linter.git .arcanist-external-json-linter
 $ git submodule update --init
 ```