Check documentation in on-push workflow (#56)

Author: eryk171

.github/workflows/on-push.yml

@@ -43,3 +43,14 @@ jobs:
       - name: Build
         run: yarn build
         working-directory: ./example
+
+      # Check documentation
+      - name: Generate documentation
+        run: yarn build:docs
+
+      - name: Check for documentation changes
+        run: |
+          if [[ -n $(git status --porcelain | grep "README.md") ]]; then
+            echo "Documentation is not up to date!"
+            exit 1
+          fi