Update PULL_REQUEST_TEMPLATE.md

Reverted previous changes to restore accuracy of intent to ask to make PRs to upstream clients where applicable.

Author: BTCMcBoatface

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,12 +2,12 @@
 *** Please remove the following help text before submitting: ***
 
 Before opening a pull request to Bitcoin Knobs, please first consider if it
-is appropriate for Bitcoin knots or Knobs and, if so, rebase it and first 
-[open a pull request for knots](https://github.com/bitcoin/bitcoin/compare) 
-or contact satoshi in his Discord for knobs. Bitcoin knots has a strict and slow 
+is appropriate for upstream clients Core or Knots and, if so, rebase it and first 
+[open a pull request for Core](https://github.com/bitcoin/bitcoin/compare) 
+or contact Luke in his Discord for Knots. Bitcoin Core has a strict and slow 
 review process, but since Knobs is more focused on providing as many knobs as 
-possible, feel free to request a merge of your knots PR into Knobs even while 
-it's waiting on knots (or satoshi to push for knobs).
+possible, feel free to request a merge of your Core/Knots PR into Knobs even while 
+it's waiting on an upstream merge (or for Luke to push for Knots).
 
 -->