Merge pull request #13408 from Quy/master

Add missing word.

docs/examples/equal-height-columns/index.html

@@ -61,7 +61,7 @@
       </div>
       <div class="bs-callout bs-callout-warning">
         <h4>Warning: Changes column wrapping behavior</h4>
-        <p>If you have put than 12 columns in one <code>.row-eq-height</code>, the columns will be forced to shrink into a single row, instead of wrapping onto a new line as they normally would.</p>
+        <p>If you have put more than 12 columns in one <code>.row-eq-height</code>, the columns will be forced to shrink into a single row, instead of wrapping onto a new line as they normally would.</p>
       </div>
 
       <h3>Equal-height row with more than 12 columns</h3>