fix: feature section slide mode link broken

Signed-off-by: Raccoon <raccoon@hackmd.io>

Author: a60814billy

public/views/index/body.ejs

@@ -77,7 +77,7 @@
                             </a>
                         </div>
                         <div class="col-md-4 inner">
-                            <a href="<%- serverURL %>/features#Slide-Modee">
+                            <a href="<%- serverURL %>/features#Slide-Mode">
                                 <i class="fa fa-tv fa-3x"></i>
                                 <h4><%= __('Support slide mode') %></h4>
                             </a>