adding github workflow for actions GH pages

.github/workflows/jekyll.yml

@@ -0,0 +1,26 @@
+name: Build and Deploy GH Pages with Jekyll Actions
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  jekyll:
+    runs-on: ubuntu-16.04
+
+    steps:
+      - uses: actions/checkout@v2
+
+      # Use GitHub Actions' cache to shorten build times and decrease load on servers.
+      - uses: actions/cache@v1
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-gems-
+
+      - uses: helaili/jekyll-action@2.0.1
+        env:
+          # Ideally use GITHUB_TOKEN but it gives error for this action.
+          JEKYLL_PAT: ${{ secrets.JEKYLL_PAT }}