adding github action support for zola branch only

.github/workflows/tf_update.yml

@@ -0,0 +1,22 @@
+name: Threefold_io
+on: 
+  push:
+    branch: [ zola_development ]
+
+jobs:
+  job_one:
+    name: Deploy
+    runs-on: ubuntu-latest
+    steps:
+    - name: pushing latest change on www3.threefold.io
+      uses: appleboy/ssh-action@master
+      with:
+        host: www3.threefold.io
+        username: root
+        key: ${{ secrets.TF_SECRET }}
+        port: 22
+        script: |
+        cd /opt/www_threefold_io/
+        git pull
+        git log -1
+        git status