Add scripts folder

scripts/check-changelog.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# Check if `CHANGELOG.md` file has been modified
+if git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep -q "CHANGELOG.md"; then
+  echo "CHANGELOG.md has been modified. Good job!"
+else
+  echo "::error::CHANGELOG.md has not been modified. Please update the changelog."
+  exit 1
+fi