Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -8,17 +8,17 @@ Setup guides, FAQ, the more information we have on the wiki the better.
 ## Development ##
 
 ### Tools required ###
-- Visual Studio 2015
-- HTML/Javascript editor of choice (Sublime Text/Webstorm/Atom/etc)
-- npm (node package manager)
+- Visual Studio 2017
+- HTML/Javascript editor of choice (VS Code/Sublime Text/Webstorm/Atom/etc)
+- yarn (package manager)
 - git
 
 ### Getting started ###
 
 1.  Fork Lidarr
 2.  Clone (develop branch) *you may need pull in submodules separately if you client doesn't clone them automatically (CurlSharp)*
-3.  Run `npm install`
-4.  Run `npm start` - Used to compile the UI components and copy them.
+3.  Run `yarn install`
+4.  Run `yarn start` - Used to compile the UI components and copy them.
     Leave this window open.
     If you have gulp globally installed you can use `gulp watch` instead
 5.  Compile in Visual Studio