Mention manual testing

Author: yardenshoham

templates/repo/watchers.tmpl

@@ -4,7 +4,8 @@
 	<div class="no-loading-indicator tw-hidden"></div>
 	<!-- this element reloads its content with htmx as soon as a response from the backend
 	 includes the header "HX-Trigger: refreshCards". This usually happens when a user
-	 watched/unwatched/starred/unstarred and we want their user card to appear/disappear -->
+	 watched/unwatched/starred/unstarred and we want their user card to appear/disappear.
+	 To test go to the watchers page and click the watch button. The user cards should reload. -->
 	<div
 		hx-trigger="refreshCards from:body"
 		hx-indicator=".no-loading-indicator"