Fixed broken Customizer link for docs

docs/getting-started.html

@@ -276,7 +276,7 @@ bootstrap/
     </div>
 
     <h3>Removing potential bloat</h3>
-    <p>Not all sites and applications need to make use of everything Bootstrap has to offer, especially in production environments where bandwidth literally becomes a financial issue. We encourage folks to remove whatever is unused with our <a href="./customizer/">Customizer</a>.</p>
+    <p>Not all sites and applications need to make use of everything Bootstrap has to offer, especially in production environments where bandwidth literally becomes a financial issue. We encourage folks to remove whatever is unused with our <a href="/customize/">Customizer</a>.</p>
     <p>Using the Customizer, simply uncheck any component, feature, or asset you don't need. Hit download and swap out the default Bootstrap files with these newly customized ones. You'll get vanilla Bootstrap, but without the features *you* deem unnecessary. All custom builds include compiled and minified versions, so use whichever works for you.</p>
 
   </div>