Update new-issue.md

.github/ISSUE_TEMPLATE/new-issue.md

@@ -8,5 +8,9 @@ assignees: ''
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 <!--
-When reporting a bug or requesting a feature, make sure to describe both what esbuild is currently doing and what you want esbuild to do instead. Please use https://esbuild.github.io/try/ to demonstrate the behavior you are talking about if possible, and paste the URL here to share it.
+When reporting a bug or requesting a feature, please do the following:
+
+* Describe what esbuild is doing incorrectly and what it should be doing instead.
+
+* Provide a way to reproduce the issue. The best way to do this is to demonstrate the issue on the playground (https://esbuild.github.io/try/) and paste the URL here. A link to a minimal code sample with instructions for how to reproduce the issue may also work. Issues without a way to reproduce them may be closed.
 -->