test: Add PatPatBot action

Author: nicklem

.github/workflows/patpatbot.yml

@@ -0,0 +1,17 @@
+name: Review pattern documentation
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  run-patpatbot:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Run PatPatBot Action
+      uses: nicklem/patpatbot@main