update flake8 issue link

TimidRobot · TimidRobot · commit 1edd010a59b3 · 2021-04-13T14:31:42.000-07:00
diff --git a/pyproject.toml b/pyproject.toml
@@ -11,7 +11,7 @@ target-version = ['py38']
 
 # [tool.flake8]
 #   config: .flake8
-# also see: https://gitlab.com/pycqa/flake8/-/issues/428
+# also see: https://github.com/PyCQA/flake8/issues/234
 
 
 [tool.isort]
