Add Github Action to auto-upload documentation

.github/workflows/rust.yml

@@ -0,0 +1,28 @@
+name: Rust
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
+    - name: Docment API
+      run: |
+        cargo doc --target x86_64-unknown-linux-gnu --target-dir .
+        rm -rf ./doc ./debug
+        cp ./x86_64-unknown-linux-gnu/doc ./doc -r
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        branch: gh-pages
+        force: true