Fix HTML link to HTML/images.html

imsc1/spec/ttml-ww-profiles.html

@@ -4641,7 +4641,7 @@ <h4>Success Criterion 1.1.1 Non-text Content</h4>
         <p>In the context of this specification, <a>text alternative</a> is intended primarily to support users of the subtitles who
         cannot see images (the <a>non-text content</a>). Since the images of an <a>Image Profile</a> <a>Document Instance</a>
         usually represent subtitle or caption text, the guidelines of 
-        <a data-cite="HTML#text-that-has-been-rendered-to-a-graphic-for-typographical-effect">Text that has been rendered to a
+        <a data-cite="HTML/images.html#text-that-has-been-rendered-to-a-graphic-for-typographical-effect">Text that has been rendered to a
         graphic for typographical effect</a> at [[!HTML]] are appropriate.</p>
 
         <p>Thus, for each subtitle in an <a>Image Profile</a> <a>Document Instance</a>, <a>text alternative</a> content in a <a>Text