Fix syntax errors

app/views/layouts/application.html.haml

@@ -5,10 +5,10 @@
     %meta{:name => 'viewport', :content => 'width=device-width, initial-scale=1'}/
     %meta{'http-equiv' => 'X-UA-Compatible', :content => 'IE=edge'}/
 
-    %link{:rel => "apple-touch-icon", :sizes => "180x180" :href => "/assets/apple-touch-icon.png"}/
-    %link{:rel => "manifest", href => "/assets/manifest.json"}/
-    %meta{:name => "msapplication-config", content => "/assets/browserconfig.xml"}/
-    %meta{:name => "theme-color", content => "#ffffff"}/
+    %link{:rel => "apple-touch-icon", :sizes => "180x180", :href => "/assets/apple-touch-icon.png"}/
+    %link{:rel => "manifest", :href => "/assets/manifest.json"}/
+    %meta{:name => "msapplication-config", :content => "/assets/browserconfig.xml"}/
+    %meta{:name => "theme-color", :content => "#ffffff"}/
 
     %title
       = "#{yield(:page_title)} - " if content_for?(:page_title)