Add CLI feature by decorator

.babelrc

@@ -7,7 +7,8 @@
     }]
   ],
   "plugins": [
-    "@babel/plugin-proposal-object-rest-spread"
+    "@babel/plugin-proposal-object-rest-spread",
+    ["@babel/plugin-proposal-decorators", { "legacy": true }],
   ],
   "env": {
     "es5": {
@@ -19,6 +20,7 @@
       "plugins": [
         "@babel/plugin-transform-async-to-generator",
         "@babel/plugin-transform-runtime",
+        ["@babel/plugin-proposal-decorators", { "legacy": true }],
       ]
     }
   }

.gitignore

@@ -2,3 +2,5 @@ node_modules
 npm-debug.log
 dist
 coverage
+.vscode
+bin

README.md

@@ -28,6 +28,7 @@
 - [Docs](#docs)
 - [Development](#development)
 - [Testing](#testing)
+- [CLI](#cli)
 - [Contributors](#contributors)
 - [License](#licence)
 - [Changelog](#changelog)
@@ -448,6 +449,19 @@ PERSONAL_ACCESS_TOKEN='abcdefg' GITLAB_URL='http://localhost:8080' npm run test
 
 > Note it may take about 3 minutes to get the variables while Gitlab is starting up in the container
 
+## CLI
+```bash
+npm install -g node-gitlab
+```
+
+```bash
+# ES6 (>=node 8.0.0)
+gitlab
+// ES5
+gitlabe5
+```
+
+[git-style-sub-commands](https://github.com/tj/commander.js#git-style-sub-commands)
 
 ## Contributors
 
@@ -486,6 +500,7 @@ This started off as a fork from [node-gitlab](https://github.com/node-gitlab/nod
 - [Norm MacLennan](https://github.com/maclennann)
 - [jnovick](https://github.com/jnovick)
 - [Fabian Aussems](https://github.com/mozinator)
+- [mdsb100](https://github.com/mdsb100)
 
 ## License