Removes unused yarn.lock and updates README.md

Author: gorlandor

README.md

@@ -7,9 +7,9 @@ Valido — A helper library for form validation built on top of .@chriso's valid
 
 2. Navigate into the valido folder: `$ cd valido`  
 
-3. Install deps using yarn: `$ yarn install`  
+3. Install deps using npm: `$ npm install`  
 
-4. Test using jest `$ yarn jest`  
+4. Test using jest `$ npm run jest`  
 
 # example usage
 

valido-react/README.md

@@ -3,5 +3,4 @@ This project was bootstrapped with [Create React App](https://github.com/faceboo
 ## Usage
 
 1. Install deps `npm install`
-2. Run tests `npm run jest`
-3. Serve locally in development mode `cd valido-react && npm install && npm start`
+2. Serve locally in development mode `npm start`