feat: add drone-ci

.drone.yml

+---
+kind: pipeline
+type: docker
+name: default
+trigger:
+  branch:
+    - master
+steps:
+  - name: ssh commands
+    image: appleboy/drone-ssh
+    settings:
+      host: 159.89.175.2
+      username: deploy
+      port: 22
+      key:
+        from_secret: ssh_key
+      script:
+        - cd /home/rhnvrm/apps/rohanverma.net && git fetch origin && git checkout $DRONE_COMMIT
+        - cd /home/rhnvrm/proxy
+        - docker-compose build rohanvermanet
+        - docker-compose up -d rohanvermanet