Merge pull request #7041 from readingdancer/patch-18

Fixing typos.

Author: sofietoft

15/umbraco-cms/customizing/extending-overview/README.md

@@ -4,16 +4,16 @@ description: Getting started with backoffice setup and configurations
 
 # Extension Overview
 
-The Backoffice architecture is based on Extensions, making different parts of the UI extendable. Enabling you to append, replace, or remove parts.
+The backoffice architecture is based on Extensions, making different parts of the UI extendable. Enabling you to append, replace, or remove parts.
 
 <figure><img src="../../.gitbook/assets/backoffice-overview-customizations.png" alt=""><figcaption></figcaption></figure>
 
-In this section you can find the common terms, concepts and guides used to extend the Umbraco backoffice.
+In this section, you can find the common terms, concepts and guides used to extend the Umbraco backoffice.
 
 ## [Extension Registry](extension-registry/)
 
-How to registere extensions or manipulate others.
+How to register extensions or manipulate others.
 
 ## [Extension Types](extension-types/)
 
-An overview of the different ways to append funcationtlity.
+An overview of the different ways to append functionality.