Update README.md, Custom User Settings, wrong link to the video (Orch…

…ardCMS#15487)

As discussed here OrchardCMS@4ad0cd9#commitcomment-139612621, this is a fix for the wrong video anchor, it was uppercase (#Video) instead to be lowercase (#video).

src/docs/reference/modules/Users/CustomUserSettings/README.md

@@ -12,7 +12,7 @@ To enable the "Custom User Settings" module, select it from the "Features" list.
     Don't mark any existing Content Type with this `CustomUserSettings` stereotype, as this will break existing content items of this type.
 
 Custom User Settings are then comprised of parts and fields like any other content type.  
-After creation, go to Security >> Users to either create a new user or modify an existing one. Each of these sections will be accessible through distinct tabs. For further information, refer to the video located at the [bottom of this page.](#Video). 
+After creation, go to Security >> Users to either create a new user or modify an existing one. Each of these sections will be accessible through distinct tabs. For further information, refer to the video located at the [bottom of this page](#video). 
 
 ## Usage