Add workflow to automatically publish html slides

Author: cr-xu

.github/workflows/publish_website.yaml

@@ -0,0 +1,40 @@
+name: publish_website
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+    push_to_branch:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
+              with:
+                fetch-depth: 0
+            
+            - name: Setup Python
+              uses: actions/setup-python@v2
+              with:
+                python-version: '3.x'
+            
+            - name: Install Jupyter
+              run: pip install notebook
+
+            - name: Export the notebook and Add files
+              run: |
+                mkdir temp
+                cp -r img/ temp/img/
+                jupyter nbconvert tutorial.ipynb --to slides
+                mv tutorial.slides.html temp/index.html
+                ls -R temp
+                rm -r meta-rl/
+
+            - name: Deploy
+              uses: s0/git-publish-subdir-action@develop
+              env:
+                REPO: self
+                BRANCH: website
+                FOLDER: temp
+                GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}