Add GidPod Online IDE (#12)

Author: huan

.gitpod.Dockerfile

@@ -0,0 +1,10 @@
+FROM gitpod/workspace-full
+                    
+USER gitpod
+
+# Install custom tools, runtime, etc. using apt-get
+# For example, the command below would install "bastet" - a command line tetris clone:
+#
+# RUN sudo apt-get -q update && #     sudo apt-get install -yq bastet && #     sudo rm -rf /var/lib/apt/lists/*
+#
+# More information: https://www.gitpod.io/docs/config-docker/

.gitpod.yml

@@ -0,0 +1,4 @@
+tasks:
+  - init: make
+image:
+  file: .gitpod.Dockerfile

README.md

@@ -4,6 +4,8 @@
 
 Java Wechaty Starter Project Template that Works Out-of-the-Box
 
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/wechaty/java-wechaty-getting-started) 
+
 ## Connecting Chatbots
 
 [![Powered by Wechaty](https://img.shields.io/badge/Powered%20By-Wechaty-brightgreen.svg)](https://github.com/Wechaty/wechaty)