Adds deploy action

.github/workflows/publish-docs.yml

@@ -0,0 +1,42 @@
+name: Publish docs to Github Pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  publish-docs:
+    runs-on: macos-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Cache Gradle Wrapper
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Gradle Wrapper Validation
+        uses: gradle/actions/wrapper-validation@v3
+
+      - name: Setup JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '18'
+          cache: gradle
+
+      - name: Build Dokka HTML
+        run: ./gradlew dokkaHtmlMultiModule
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./build/dokka