fixed link issue 77

requirements.html

@@ -307,7 +307,7 @@ <h4>User Need - Rewrap:</h4>
         <p>Blocks of text rewrap so that only one direction of scrolling is needed, e.g., for left-right and right-left scripts (languages), usually vertical scrolling and not horizontal scrolling.</p>
       </div>
         <p class="issue" id="script-direction">Script direction: Rewrap above and Reflow below are written for left-right and right-left scripts for now for simplicity. We'll edit it to make it generic to apply also vertically to top-to-bottom scripts as appropriate — if we can without complicating it too much, or change it to example only.<br />
-              <a href="http://www.i18nguy.com/temp/rtl.html">script vs. language reference</a> says “Languages don't have a direction. Scripts have a writing direction”.</p>
+              <a href="https://www.w3.org/International/questions/qa-scripts#which">script vs. language reference</a> says “Languages don't have a direction. Scripts have a writing direction”.</p>
         </section>
     <section>
           <h3>Reflow to Single Column</h3>