add correct links to Release Tours

Author: dimpase

src/index.html

@@ -145,8 +145,10 @@ <h2><a href="https://doc.sagemath.org/html/en/installation/index.html">Install {
      <div class="small">
        <span class="nowrap"><a href="https://github.com/sagemath/sage/releases">Releases</a>
          &middot; </span>
-         {#<span class="nowrap"><a href="https://wiki.sagemath.org/ReleaseTours/">Release Tours</a>
-       &middot; </span>#}
+         <span class="nowrap"><a href=""https://github.com/sagemath/sage/wiki/Release-Tours>Release Tours</a>
+       &middot; </span>
+	 <span class="nowrap"><a href=""https://github.com/sagemath/sage/wiki/Sage-{{version}}-Release-Tour>Release Tour for {{version}}</a>
+       &middot; </span>
          {#<span class="nowrap"><a href="changelogs/index.html">Changelogs</a>
        &middot; </span>#}
          {#<span class="nowrap"><a href="download-source.html">Source tarball {{ version_src }}</a>