Add .drone.yml

.drone.yml

@@ -0,0 +1,19 @@
+---
+kind: pipeline
+name: publish docker image
+steps:
+  - name: submodule
+    image: plugins/git
+    settings:
+      recursive: true
+      submodule_override:
+        calendso: https://github.com/calendso/calendso.git
+  - name: build and publish
+    image: plugins/docker
+    settings:
+      username:
+        from_secret: docker_reg_username_3wc
+      password:
+        from_secret: docker_reg_passwd_3wc
+      repo: 3wordchant/calendso
+      tags: latest