update README (#3248)

README.md

@@ -50,8 +50,7 @@ If you have a small set of rules, or want to support a technology that is not
 widely in use, and still believe this will be helpful to others, please read the
 section about [specialized templates](#specialized-templates) for more details.
 
-If you believe your template is important and should be highly visible, please
-add details about the impact of the technology when you open a pull request. We
+Include details when opening pull request if the template is important and visible. We
 may not accept it immediately, but we can promote it to the root at a later date
 based on interest.