title: Transform(redirect) URL segment to a GET parameter
body: <p>I know this has probably been answered but I can't find anything specific to my issue.</p>
  
  <p>I have URLS like this:</p>
  
  <pre><code>https://staging.books.co.za/travelguide/route-map/SAFI546754
  https://staging.books.co.za/travelguide/route-map/SAFI189444
  https://staging.books.co.za/travelguide/route-map/SAFI978634
  </code></pre>
  
  <p>and I need them to be redirected to URLS like this:</p>
  
  <pre><code>https://staging.books.co.za/travelguide/route-map?reference=SAFI546754
  https://staging.books.co.za/travelguide/route-map?reference=SAFI189444
  https://staging.books.co.za/travelguide/route-map?reference=SAFI978634
  </code></pre>
  
  <p>Please help...What would the rule look like in my .htaccess file???</p>