PEP 677: Update the thanks section (#2196)

Author: stroxler

pep-0677.rst

@@ -943,11 +943,8 @@ Acknowledgments
 Thanks to the following people for their feedback on the PEP and help
 planning the reference implementation:
 
-Alex Waygood, Guido Van Rossum, Eric Traut, James Hilton-Balfe, Maggie
-Moss, Shannon Zhu
-
-TODO: MAKE SURE THE THANKS STAYS UP TO DATE
-
+Alex Waygood, Eric Traut, Guido van Rossum, James Hilton-Balfe,
+Jelle Zijlstra, Maggie Moss, Tuomas Suutari, Shannon Zhu.
 
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