Add workflow badges to README

Author: harryh0

README.md

@@ -1,3 +1,7 @@
+![Auto Assign](https://github.com/AIDA-Aysnc/demo-repository/actions/workflows/auto-assign.yml/badge.svg)
+
+![Proof HTML](https://github.com/AIDA-Aysnc/demo-repository/actions/workflows/proof-html.yml/badge.svg)
+
 # Welcome to your organization's demo respository
 This code repository (or "repo") is designed to demonstrate the best GitHub has to offer with the least amount of noise.