Fix doc typos

cherry-picked

doc/profile/preferences.md

@@ -5,8 +5,8 @@ various aspects of the site to their liking.
 ## Application theme
-Changing this settings allows the user to customize the color scheme used for
-the navigation bar on the left side of the screen.
+Changing this setting allows the user to customize the color scheme used for the
+navigation bar on the left side of the screen.
 The default is **Charcoal**.
@@ -25,9 +25,8 @@ For users who have access to a large number of projects but only keep up with a
 select few, the amount of activity on the default Dashboard page can be
 overwhelming.
-Changing this setting to allows the user to redefine what their default
-dashboard will be. Setting it to **Starred Projects** will make that Dashboard
-view the default when signing in or clicking the application logo in the upper
-left.
-The default is **Projects**.
+Changing this setting allows the user to redefine what their default dashboard
+will be. Setting it to **Starred Projects** will make that Dashboard view the
+default when signing in or clicking the application logo in the upper left.
+The default is **Your Projects**.