tidy up readme

Author: ezy

README.md

@@ -66,8 +66,7 @@ You will also see any lint errors in the console.
 
 ### `yarn test`
 
-Launches the test runner in the interactive watch mode.<br>
-See the section about [running tests](#running-tests) for more information.
+Launches the test runner in the interactive watch mode.
 
 ### `yarn build`
 
@@ -77,4 +76,6 @@ It correctly bundles React in production mode and optimizes the build for the be
 The build is minified and the filenames include the hashes.<br>
 Your app is ready to be deployed!
 
-See the section about [deployment](#deployment) for more information.
+### `yarn lint`
+
+Runs linting for the project and checks against rules in `.eslintrc.json`.