Fix sentence syntax

Author: xavierfoucrier

README.md

@@ -4,7 +4,7 @@ Website for mo · js with tutorials and documentation.
 ![mo · js](logo.png "mo · js")
 
 ## To get started
-* Install VuePress globally to be able to run the command `npm install -g vuepress`
+* Install VuePress globally using `npm i -g vuepress`
 * Run `npm i` to install all dependencies
 * Run `npm start` to start the project on `http://localhost:8080`