Improve project structure

.github/publish-docs.yml

@@ -0,0 +1,24 @@
+name: Publish docs via GitHub Pages
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Deploy docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+      - name: set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Build docs
+        run: ./gradlew dokkaHtmlMultiModule
+      - name: Deploy docs
+        uses: mhausenblas/mkdocs-deploy-gh-pages@1.25
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CONFIG_FILE: mkdocs.yml

.gitignore

@@ -1,3 +1,6 @@
+# Dokka
+/docs/api
+
 # Built application files
 *.apk
 *.ap_