Update README

Author: hisasann

README.md

@@ -8,6 +8,12 @@ example url: [https://typescript-nuxtjs-boilerplate.netlify.com/example](https:/
 
 **Note: requires node version >= 8.10.0 and npm version >= 5.6.0**
 
+First, clone the repo via git:
+
+```bash
+$ git clone --recursive git@github.com:hisasann/typescript-nuxtjs-boilerplate.git
+```
+
 ### Install yarn
 
 **for mac**