Merge pull request #22 from ChainSafe/publish.yml

Add publish.yml to publish via github pages using github actions rather than travis

Author: wemeetagain

.github/workflows/publish.yml

@@ -0,0 +1,24 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      master
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Setup Node
+      uses: actions/setup-node@v1
+      with:
+        node-version: '12.x'
+    - run: yarn
+    - run: yarn build
+    - name: Deploy
+      uses: peaceiris/actions-gh-pages@v2
+      env:
+        PERSONAL_TOKEN: ${{ secrets.GH_PAGES_TOKEN }}
+        PUBLISH_BRANCH: gh-pages
+        PUBLISH_DIR: ./dist