fix: update documentation

Author: atymic

README.md

@@ -8,7 +8,7 @@ Please create an issue for it if it does not already exist, then PR you code for
 
 ## Workflow for new channels
 
-1) Head over to the [skeleton repo](https://github.com/laravel-notification-channels/skeleton) & press "Use this template" to create a repo from the skeleton.
+1) Head over to the [skeleton repo](https://github.com/laravel-notification-channels/skeleton) download a ZIP copy. This is important, to ensure you start from a fresh commit history.
 2) Use find/replace to replace all of the placeholders with the correct values (package name, author name, email, etc).
 3) Implement to logic for the channel & add tests.
 4) Fork this repo, add it as a remote and push your new channel to a branch.