Update index.html

Updated Salt Lake County address grid description by removing Copperton exception.

data/address/address-grids/index.html

@@ -282,11 +282,9 @@ <h2 class="text-left">Rich County</h2>
 <h2 class="text-left">Salt Lake County</h2>
 <p>Address origins</p>
 <div>All cities in Salt Lake County count off the same address origin in downtown Salt Lake City at the intersection of
-  South Temple (0 N/S) &amp; Main St (0 E/W) <em><strong>with the exception of the following two areas</strong></em>:
+  South Temple (0 N/S) &amp; Main St (0 E/W) <em><strong>with the exception of the following area</strong></em>:
 </div>
 <ul>
-  <li>Copperton – located between county coordinates of 10200 S and 10600 S (approximately) &amp; 8500 W and 8900 W
-    (approximately)
   <li>Pepperwood Subdivision – located in the city of Sandy and extends from 2000 E to Wasatch Blvd (3265 E) and from
     Dimple Dell Rd (10650 S) to Lone Hollow Rd (11270 S).
 </ul>