Merge pull request #7 from cgs-earth/ci

Create flake8 GitHub Action

.github/workflows/flake8.yml

@@ -0,0 +1,24 @@
+name: flake8 ⚙️
+
+on: [ push, pull_request ]
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Setup Python
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+        architecture: x64
+    - name: Checkout repository
+      uses: actions/checkout@master
+    - name: Install flake8
+      run: pip install flake8 flake8-nb
+    - name: run flake8 ⚙️
+      run: |
+        find . -type f -name "*.py" | xargs flake8
+    - name: run flake8-notebook ⚙️
+      run: |
+        find . -type f -name "*.ipynb" | xargs flake8-nb