docs(avatar): fix types article sample (#1656)

Author: xristianstefanov

components/avatar/types.md

@@ -41,7 +41,7 @@ If the `Type` parameter value is not matching the type of the content, you will
 
 <TelerikAvatar Type="AvatarType.Icon">
 
-    <TelerikFontIcon Icon="@FontIcon.User"></TelerikIcon>
+    <TelerikFontIcon Icon="@FontIcon.User"></TelerikFontIcon>
 
 </TelerikAvatar>
 ````