Update index.html

Author: takezoe

layouts/index.html

@@ -143,7 +143,7 @@ <h3>Versions</h3>
     <tr>
       <td>3.0.0-M4-jakarta</td>
       <td>Milestone</td>
-      <td><a href="http://github.com/scalatra/scalatra/tree/3.0.0-M4-jakarta">3.0.0-M4-jakarta</td>
+      <td><a href="http://github.com/scalatra/scalatra/tree/v3.0.0-M4-jakarta">3.0.0-M4-jakarta</td>
       <td>
         <ul class="scala-versions">
           <li>2.12.x</li>
@@ -156,7 +156,7 @@ <h3>Versions</h3>
     <tr>
       <td>3.0.0-M4</td>
       <td>Milestone</td>
-      <td><a href="http://github.com/scalatra/scalatra/tree/3.0.0-M4">3.0.0-M4</td>
+      <td><a href="http://github.com/scalatra/scalatra/tree/v3.0.0-M4">3.0.0-M4</td>
       <td>
         <ul class="scala-versions">
           <li>2.12.x</li>