=cache comment

tox.ini

@@ -40,6 +40,5 @@ markers =
 basepython = python3
 deps = mypy==1.3
 # mypy gives different results if you actually install the stuff before you check it
-# don't cache anything, will be slower, but each run should be clean
-# this also stops weirdness around sharing cache with other instances of mypy
+# separate cache to stop weirdness around sharing cache with other instances of mypy
 commands = mypy --cache-dir="{envdir}/mypy_cache" --config-file=mypy.ini