Frontend: fix broken links (#342)

* frontend: fix cozy link

* frontend: fix cli link

frontend/index.html

@@ -295,7 +295,7 @@
             </a>
           </div>
           <div class="card">
-            <a class="card-block" href="https://github.com/lesspass/cozy#install">
+            <a class="card-block" href="https://github.com/lesspass/lesspass/tree/master/cozy#install">
               <div class="card-title"><i class="fa fa-fw fa-3x fa-cloud text-info" aria-hidden="true"></i></div>
               <div class="card-text">
                 Cozy Cloud
@@ -319,7 +319,7 @@
             </a>
           </div>
           <div class="card">
-            <a class="card-block text-muted" href="https://github.com/lesspass/cli#install">
+            <a class="card-block text-muted" href="https://github.com/lesspass/lesspass/tree/master/cli#install">
               <div class="card-title"><i class="fa fa-fw fa-3x fa-terminal" aria-hidden="true"></i></div>
               <div class="card-text">
                 Terminal