Fix #23. Add note about removing --headless

Author: weitzman

README.md

@@ -29,9 +29,10 @@ This service can be used with any project type. The examples below are Drupal-sp
 
 ### The easy way: Use noVNC (built-in)
 
-On your host, browse to https://[DDEV SITE URL]:7900 (password: `secret`) to watch tests run with noVNC (neat!).
+1. Remove --headless from the MINK_DRIVER_ARGS_WEBDRIVER in your project's .ddev/config.selenium-standalone-chrome.yaml. Run `ddev restart`.  
+2. On your host, browse to https://[DDEV SITE URL]:7900 (password: `secret`) to watch tests run with noVNC (neat!).
 
-This is a no-configuration solution that enables you to quickly see what is going on with your tests.
+This enables you to quickly see what is going on with your tests.
 
 ### Use a local VNC client (try noVNC first!)