message: Updated README.md to instruct use of yarn instead of npm
diff: @@ -40,9 +40,10 @@ OR
  To run the demo yourself, go through the following steps:
  -1. `npm install` _Install npm packages_
  -2. `npm start` _Run a local server_
  -3. http://localhost:8080/ _Visit your localhost in your browser_
  +1. _Clone this repo_
  +2. `yarn` _Install npm packages_
  +3. `yarn start` _Run a local server_
  +4. http://localhost:8080/ _Visit your localhost in your browser_
  ## Usage
  