Setting up workflow for building docs

Signed-off-by: RJ Garcia <ragboyjr@icloud.com>

.github/workflows/docs.yml

@@ -0,0 +1,26 @@
+name: docs
+
+on:
+  push:
+    branches:
+      - v3
+
+jobs:
+  deploy:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Hugo
+        uses: peaceiris/actions-hugo@v2
+        with:
+          hugo-version: '0.79.1'
+
+      - name: Build
+        run: hugo --minify -s doc
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./doc/public