Link to bundle conversion docs in README

Author: Nathan Sobo

README.md

@@ -1,4 +1,4 @@
 # JSON language support in Atom
 
-Originally converted from the [JSON TextMate bundle](https://github.com/textmate/json.tmbundle)
-using [apm](https://github.com/atom/apm) with the `apm init --convert` command.
+Originally [converted](http://atom.io/docs/latest/converting-a-text-mate-bundle)
+from the [JSON TextMate bundle](https://github.com/textmate/json.tmbundle).