Fix #466 - when logged in, make "get started" link to the frontpage instead of sign up

app/assets/stylesheets/about.scss

@@ -245,6 +245,7 @@
           margin: 0;
           font-family: inherit;
           font-size: 13px;
+          line-height: 18px;
 
           a {
             display: block;

app/views/about/more.html.haml

@@ -45,7 +45,10 @@
         .panel-header= t 'about.links'
         .panel-list
           %ul
-            %li= link_to t('about.get_started'), new_user_registration_path
-            %li= link_to t('auth.login'), new_user_session_path
+            - if user_signed_in?
+              %li= link_to t('about.get_started'), root_path
+            - else
+              %li= link_to t('about.get_started'), new_user_registration_path
+              %li= link_to t('auth.login'), new_user_session_path
             %li= link_to t('about.terms'), terms_path
             %li= link_to t('about.source_code'), 'https://github.com/tootsuite/mastodon'