feat: add documentation for canceling all GitHub actions jobs using GitHub CLI

HelmChart/Docs/GitHub.md

@@ -0,0 +1,21 @@
+# GitHub Ops
+
+### Cancel all GitHub actions jobs at once. 
+
+Please install GitHub CLI and run the below command in your terminal.
+
+```
+brew install gh
+```
+
+Authenticate with your GitHub account
+
+```
+gh auth login
+````
+
+Then run the below command in your terminal
+
+```
+for id in $(gh run list --limit 5000 --jq ".[] | select (.status == \"queued\" ) | .databaseId" --json databaseId,status); do gh run cancel $id; done
+```