docs: thanks Marc Gibbons for the tox.ini fix in f41f838

nedbat · nedbat · commit 74f179b591e5 · 2023-04-26T10:35:26.000-04:00
How can it be that we now have three Marcs, but only just got our first
Brian?!?
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
@@ -112,6 +112,7 @@ Loïc Dachary
 Lorenzo Micò
 Manuel Jacob
 Marc Abramowitz
+Marc Gibbons
 Marc Legendre
 Marcelo Trylesinski
 Marcus Cobden
