Enable git ssb site on mesh peer

src/freedombone-image-mesh

     chown scuttlebot:scuttlebot /etc/scuttlebot/.ssb/config
     systemctl restart scuttlebot.service
     echo "scuttlebot pub started" >> /var/log/${PROJECT_NAME}.log
+
+    # git ssb site
+    ln -s /etc/nginx/sites-available/git_ssb /etc/nginx/sites-enabled/git_ssb
 }
 
 # whether to reset the identity