Add usage info to README.rst

Author: domdfcoding

.github/workflows/flake8.yml

@@ -30,6 +30,4 @@ jobs:
           python -m pip install .
 
       - name: "Run Flake8"
-        run: "python -m flake8_prettycount flake8_github_action --exit-zero --format github"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: "python -m flake8_prettycount flake8_github_action --format github"

README.rst

@@ -94,3 +94,45 @@ Installation
 
 .. start installation
 .. end installation
+
+
+Use with GitHub Actions
+----------------------------
+
+Example workflow:
+
+.. code-block:: yaml
+
+	---
+
+	name: Flake8
+
+	on:
+	  push:
+	  pull_request:
+	    branches: ["master"]
+
+	jobs:
+	  Run:
+	    name: "Flake8"
+	    runs-on: "ubuntu-18.04"
+
+	    steps:
+	      - name: Checkout 🛎️
+	        uses: "actions/checkout@v2"
+
+	      - name: Setup Python 🐍
+	        uses: "actions/setup-python@v2"
+	        with:
+	          python-version: "3.8"
+
+	      - name: Install dependencies 🔧
+	        run: |
+	          python -VV
+	          python -m site
+	          python -m pip install --upgrade pip setuptools wheel
+	          python -m pip install flake8
+	          python -m pip install git+https://github.com/domdfcoding/flake8-github-actions
+
+	      - name: "Run Flake8"
+	        run: "flake8 --format github"