setup continuous deployments (#80)

* setup continuous deployments

* Update gh-deploy.yml

.github/workflows/gh-deploy.yml

@@ -0,0 +1,37 @@
+name: Deploy to gh-pages
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  build-and-deploy:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          # this fetches all branches. Needed because we need gh-pages branch for deploy to work
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+      - name: Deploy
+        run: |
+          git config user.name github-actions
+          git config user.email github-actions@github.com
+          mkdocs gh-deploy