Merge pull request pytorch#580 from pytorch/brianjo-1.8rc-selector

Update versions.html

Author: brianjo

docs/versions.html

@@ -20,6 +20,9 @@ <h1> PyTorch Documentation </h1>
         <li class="toctree-l1">
           <a class="reference internal" href="master/">master (unstable)</a>
         </li>
+        <li class="toctree-l1">
+          <a class="reference internal" href="1.8.0/">v1.8.0 (release candidate)</a>
+        </li>
         <li class="toctree-l1">
           <a class="reference internal" href="1.7.1/">v1.7.1 (stable release)</a>
         </li>