issue template: insist on using the Playground (#7974)

.github/ISSUE_TEMPLATE/formatting.md

@@ -15,10 +15,10 @@ BEFORE SUBMITTING AN ISSUE:
 
 2.  We get a lot of requests for adding options, but Prettier is
     built on the principle of being opinionated about code formatting.
-    This means we have a very high bar for adding new options.
+    This means we add options only in the case of strict technical necessity.
     Find out more: https://prettier.io/docs/en/option-philosophy.html
 
-Tip! Don't write this stuff manually.
+Don't fill the form below manually! Let a program create a report for you:
 
 1. Go to https://prettier.io/playground
 2. Paste your code and set options