title: Convert Wordpress Query String to Path
body: <p>I'm building a site with multiple versions of the same page. 
  So if the user goes to example.com/?u=user1, they get a custom branded version of the home page using JS which determines the query string and matches that to an image. </p>
  
  <p>My question is how can I get the user to be able to visit example.com/user1 or example.com/start/user1 rather than the query string URL? Is there any way to do this?</p>
  
  <p>I've tried rewrites but it isn't working:</p>
  
  <pre><code>RewriteEngine On
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^start/([^/]+)/?$ /?u=$1 [L]
  
  RewriteRule ^index\.php$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_URI} !^/start [NC]
  RewriteRule . /index.php [L]
  </code></pre>
  
  <p>Any help would be appreciated!</p>