(doc): Upload cli documentation

wiki/README.md

@@ -9,9 +9,9 @@ from a fresh look at the code and the outstanding issues. So here we are 🎉
 ## Getting Started
 
 <!---
-* [Command Line](cli.md)
 * [Understand the configuration file](config.md)
 -->
+* [Command Line](cli.md)
 * [Setting up *uplinks*](uplinks.md)
 * [Packages Access](packages.md)
 <!---

wiki/cli.md

@@ -0,0 +1,30 @@
+# Command Line Interface
+
+The verdaccio CLI is your go start the application. 
+
+
+## Installation
+
+Please make sure latest Node 4 LTS and NPM 3+ are installed.
+
+Then, install the CLI globally (you may need sudo):
+
+```bash
+$ npm install -g verdaccio
+```
+or if you use `yarn`
+
+```bash
+$ yarn add global verdaccio
+```
+
+## Commands
+
+```bash
+$ verdaccio --listen 4000 --config ./config.yaml
+```
+
+Command | Default | Example | Description 
+--- | --- | --- | --- 
+--listen \ **-l** | 4873 |  -p 7000 | http port
+--config \ **-c** | ~/home/user/.local/verdaccio/config.yaml | /foo/bar/config.yaml | the configuration file