Release tutorials

.github/workflows/check-pep8.yml

@@ -0,0 +1,15 @@
+name: autopep8
+on: push
+jobs:
+  autopep8:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: autopep8 
+        id: autopep8
+        uses: peter-evans/autopep8@v1
+        with:
+          args: --recursive --diff --aggressive --aggressive --exit-code --ignore E402 --max-line-length 120 .
+      - name: Fail if autopep8 made changes
+        if: ${{ steps.autopep8.outputs.exit-code == 2 }}
+        run: exit 1

.github/workflows/checks.yaml

@@ -0,0 +1,10 @@
+name: Checks
+on: [push, pull_request]
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+      - run:  bash tools/check.sh
+      - run:  bash tools/check-size.sh