Improves readability of capture attribute description (#1486)

* Fixes #1457
*

sections/semantics-forms.include

@@ -6936,7 +6936,7 @@ You cannot submit this form when the field is incorrect.</samp></pre>
 <h6 id="the-capture-attribute">The <code>capture</code> attribute</h6>
 
   The <dfn element-attr for="input"><code>capture</code></dfn> attribute is defined in the [[!html-media-capture]] specification.
-  Implementors should note the requirements on user agents defined in that specification have security and privacy implications.
+  Implementors should note the requirements for user agents defined in the [[!html-media-capture]] specification have security and privacy implications.
 
   <p class="note">The <{input/capture}> attribute requests a specific microphone or camera for the media capture mechanism,
   for example the user-facing and outward facing cameras on smartphones. It has one of the two values <code>user</code>