github actions workflow and scheduling

Working with GitHub actions more seriously recently had lead me to a few conclusions:

1. Not all repos need to have an "on push" or "on pull" action.
2. Scheduling for submodules is a great way to keep parent repos updated.
   1. Useful dependent upon whether or not the submodules have breaking dependencies.
3. All workflows should have a manual execution option.
   1. This is good outside solely testing.

Example GitHub Action snippet:

name: Example Action
on:
  schedule:
  # Run daily at midnight
  - cron: '0 0 * * *'

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch: