Typo fix

docs/getting_started/content_tree/content_tree.md

@@ -10,7 +10,7 @@ The **Content tree** area is an expandable content menu of your website.
 
 ![Content tree in the menu](../img/left_menu_tree.png "Content tree in the menu")
 
-Unique icons for each content type instantly show you what type of content you are selecting. To add custom icons to your content tree, follow [configuration tutorial in developer documentation]([[= developer_doc =]]/administration/back_office/back_office_elements/custom_icons/#customize-content-type-icons).
+Unique icons for each content type instantly show you what type of content you are selecting. To add custom icons to your content tree, follow the [configuration tutorial in developer documentation]([[= developer_doc =]]/administration/back_office/back_office_elements/custom_icons/#customize-content-type-icons).
 
 For more information about custom configuration, go to [Content tree]([[= developer_doc =]]/administration/back_office/content_tree/) in developer documentation.
 

docs/getting_started/discover_ui.md

@@ -68,7 +68,7 @@ It lets you navigate the content tree, and, for example, create, edit, move, cop
 ## Content tree
 
 Content tree is the place where you can navigate through all the content items in your application.
-It is available in the Back Office and allows you to browse your content, move content items around, hide them, send them to trash, and perform other actions.
+It is available in the back office and allows you to browse your content, move content items around, hide them, send them to trash, and perform other actions.
 
 ![Content tree in the menu](img/left_menu_tree.png "Content tree in the menu")