📝 mention how to build upfront. Closes #746

Author: basarat

CONTRIBUTING.md

@@ -17,6 +17,8 @@ apm link -l
 
 You still have to reload atom with `ctrl+alt+r` to test your changes.
 
+Now you can use atom-typescript *to develop atom-typescript*. This is covered more in the workflow https://github.com/TypeStrong/atom-typescript/blob/master/CONTRIBUTING.md#workflow
+
 (Note: [There is more guidance here](https://github.com/atom/atom/blob/master/docs/contributing-to-packages.md) but what we have is sufficient. `apm link -l` creates a symlink for the folder into `%HOMEPATH%\.atom\packages`)
 
 **Optional**: If you are working on the binaries that are used if we deploy the package to NPM you can run (again from the directory that has `package.json`):