Add docs CI and fix docs build (#176)

* Add docs CI and fix docs build

* Fix CI name

.github/workflows/ci-docs.yaml

@@ -0,0 +1,27 @@
+name: CI Docs
+on:
+  push:
+jobs:
+  docs-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "18"
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Docs / Install Dependencies
+        run: cd docs && npm install
+      - name: Docs / Build Documentation
+        run: cd docs && npm run build