Update typo fix discouragement

Author: tjjfvi

.github/pull_request_template.md

@@ -11,9 +11,11 @@ Refer to CONTRIBUTING.MD for more details.
   https://github.com/Microsoft/TypeScript/blob/main/CONTRIBUTING.md
 
 ** Please don't send typo fixes! **
-We understand that typo fixes are generally nice, but these fixes don't help
-with code quality and add work to the core team. If you're interested in
-sending a PR, the issue tracker has many issues marked `help wanted`.
+Please don't send a PR solely for the purpose of fixing a typo, unless that
+typo truly hurts understanding of the text. Each PR represents work for the
+maintainers, and that work should provide commensurate value.
+
+If you're interested in sending a PR, the issue tracker has many issues marked `help wanted`.
 -->
 
 Fixes #