Add support.md file (#98)

Adapted from https://github.com/microsoft/repo-templates/blob/main/projections/mit/SUPPORT.md

SUPPORT.md

@@ -0,0 +1,9 @@
+# Support
+
+## How to file issues and get help
+
+This project uses GitHub Issues to track bugs and feature requests. Please see https://aka.ms/azCodeIssueReporting for our issue reporting guidelines.
+
+## Microsoft Support Policy
+
+Support for this project is limited to the resources listed above.