Change: generate documentation with Github Actions

* Remove Travis

.github/workflows/pages.yml

@@ -0,0 +1,60 @@
+name: Build documentation and deploy to Pages
+
+on:
+  push:
+    branches: ["master"]
+  workflow_dispatch: # Allows you to run this workflow manually from the Actions tab
+
+# Allow one concurrent deployment
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+jobs:
+  # Build job
+  build:
+    # At a minimum this job should upload artifacts using actions/upload-pages-artifact
+    # Specify runner + deployment step
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+          cache: "pip" # caching pip dependencies
+      - name: Install dependencies
+        run: |
+          pip install -r requirements.txt
+      - name: Build documentation
+        run: |
+          cd ./documentation/src/ && make html #linkchecker
+          cd ../build/ && ls && ls html/
+          rm -rf doctrees
+          touch .nojekyll    
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: ./documentation/build/
+
+  # Deploy job
+  deploy:
+    # Add a dependency to the build job
+    needs: build
+
+    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
+    permissions:
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
+
+    # Deploy to the github-pages environment
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    # Specify runner + deployment step
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1

.travis.yml

@@ -1,28 +0,0 @@
-language: python
-python:
-    - "3.7"
-
-# Cache PlatformIO packages using Travis CI container-based infrastructure
-sudo: false
-cache:
-  - pip
-branches:
-  only:
-    - master
-install: 
-  - pip install sphinx affine shapely
-script:
-  #- python setup.py install
-  - cd ./documentation/src/ && make html #linkchecker
-  - cd ../build/ && ls && ls html/
-  - rm -rf doctrees
-  - touch .nojekyll
-
-deploy:
-  provider: pages
-  # see https://docs.travis-ci.com/user/deployment/pages/
-  skip-cleanup: true
-  github-token: $GITHUB_TOKEN  # Set in the settings page of your repository, as a secure variable
-  local-dir: ./documentation/build/
-  on:
-    branch: master