add back href for alerts in components docs to make close work on iphone

docs/components.html

@@ -1684,7 +1684,7 @@
       <h3>Example alerts</h3>
       <p>Wrap your message and an optional close icon in a div with simple class.</p>
       <div class="alert">
-        <a class="close" data-dismiss="alert">&times;</a>
+        <a class="close" data-dismiss="alert" href="#">&times;</a>
         <strong>Warning!</strong> Best check yo self, you're not looking too good.
       </div>
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@@ -1695,7 +1695,7 @@
 </pre>
       <p>Easily extend the standard alert message with two optional classes: <code>.alert-block</code> for more padding and text controls and <code>.alert-heading</code> for a matching heading.</p>
       <div class="alert alert-block">
-        <a class="close" data-dismiss="alert">&times;</a>
+        <a class="close" data-dismiss="alert" href="#">&times;</a>
         <h4 class="alert-heading">Warning!</h4>
         <p>Best check yo self, you're not looking too good. Nulla vitae elit libero, a pharetra augue. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.</p>
       </div>
@@ -1714,7 +1714,7 @@
     <div class="span4">
       <h3>Error or danger</h3>
       <div class="alert alert-error">
-        <a class="close" data-dismiss="alert">&times;</a>
+        <a class="close" data-dismiss="alert" href="#">&times;</a>
         <strong>Oh snap!</strong> Change a few things up and try submitting again.
       </div>
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@@ -1726,7 +1726,7 @@
     <div class="span4">
       <h3>Success</h3>
       <div class="alert alert-success">
-        <a class="close" data-dismiss="alert">&times;</a>
+        <a class="close" data-dismiss="alert" href="#">&times;</a>
         <strong>Well done!</strong> You successfully read this important alert message.
       </div>
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@@ -1738,7 +1738,7 @@
     <div class="span4">
       <h3>Information</h3>
       <div class="alert alert-info">
-        <a class="close" data-dismiss="alert">&times;</a>
+        <a class="close" data-dismiss="alert" href="#">&times;</a>
         <strong>Heads up!</strong> This alert needs your attention, but it's not super important.
       </div>
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