chore: tidy up index.html

Author: guohuideng2024

index.html

@@ -717,8 +717,8 @@ <h3>
         </p>
         <p data-dfn-for="PerformanceResourceTiming">
           The <dfn>contentEncoding</dfn> getter steps are to return
-          <a>this</a>'s <a data-for="PerformanceResourceTiming">resource info
-          </a>'s [=response body info/content encoding=].
+          <a>this</a>'s <a data-for="PerformanceResourceTiming">resource
+          info</a> 's [=response body info/content encoding=].
         </p>
         <p data-dfn-for="PerformanceResourceTiming">
           The <dfn>renderBlockingStatus</dfn> getter steps are to return