add version to docs homepage, fix docs example for forms

docs/templates/pages/base-css.mustache

@@ -844,7 +844,7 @@
   <label class="checkbox">
     <input type="checkbox"> {{_i}}Remember me{{/i}}
   </label>
-  <button type="submit" class="btn">{{_i}}Go{{/i}}</button>
+  <button type="submit" class="btn">{{_i}}Sign in{{/i}}</button>
 </form>
 </pre>
     </div>