add description to not set

Author: yp05327

options/locale/locale_en-US.ini

@@ -923,6 +923,7 @@ repo_and_org_access = Repository and Organization Access
 permissions_public_only = Public only
 permissions_access_all = All (public, private, and limited)
 permission_not_set = Not set
+permission_not_set_helper = No public access to this unit
 permission_no_access = No Access
 permission_read = Read
 permission_write = Read and Write

templates/repo/settings/public_access.tmpl

@@ -16,7 +16,8 @@
 			<table class="ui table unstackable tw-my-2">
 				<tr>
 					<th></th>
-					<th>{{ctx.Locale.Tr "settings.permission_not_set"}}</th>
+					<th>{{ctx.Locale.Tr "settings.permission_not_set"}}
+					<span class="tw-align-middle" data-tooltip-content="{{ctx.Locale.Tr "settings.permission_not_set_helper"}}">{{svg "octicon-question" 16 "tw-ml-1"}}</span></th>
 					<th>{{ctx.Locale.Tr "settings.permission_anonymous_read"}}
 					<span class="tw-align-middle" data-tooltip-content="{{ctx.Locale.Tr "settings.permission_anonymous_read_helper"}}">{{svg "octicon-question" 16 "tw-ml-1"}}</span></th>
 					<th>{{ctx.Locale.Tr "settings.permission_everyone_read"}}