fix filename mention in js docs per #1938

docs/javascript.html

@@ -930,7 +930,7 @@ $('a[data-toggle="tab"]').on('shown', function (e) {
             </p>
           </div>
           <hr>
-          <h2>Using bootstrap-alerts.js</h2>
+          <h2>Using bootstrap-alert.js</h2>
           <p>Enable dismissal of an alert via javascript:</p>
           <pre class="prettyprint linenums">$(".alert").alert()</pre>
           <h3>Markup</h3>

docs/templates/pages/javascript.mustache

@@ -854,7 +854,7 @@ $('a[data-toggle="tab"]').on('shown', function (e) {
             </p>
           </div>
           <hr>
-          <h2>{{_i}}Using bootstrap-alerts.js{{/i}}</h2>
+          <h2>{{_i}}Using bootstrap-alert.js{{/i}}</h2>
           <p>{{_i}}Enable dismissal of an alert via javascript:{{/i}}</p>
           <pre class="prettyprint linenums">$(".alert").alert()</pre>
           <h3>{{_i}}Markup{{/i}}</h3>