Update RELEASE.md

Author: driesvints

RELEASE.md

@@ -1,4 +1,4 @@
 # Release Instructions
 
 1. Update the version in [`bin/laravel`](./bin/laravel) and commit it
-2. Create a new GitHub release for this version with the release notes
+2. [Create a new GitHub release](https://github.com/laravel/installer/releases/new) for this version with the release notes