Mistyped was mistyped (#7762)

Author: farisachugthai

doc/en/mark.rst

@@ -76,7 +76,7 @@ Raising errors on unknown marks
 
 Unregistered marks applied with the ``@pytest.mark.name_of_the_mark`` decorator
 will always emit a warning in order to avoid silently doing something
-surprising due to mis-typed names. As described in the previous section, you can disable
+surprising due to mistyped names. As described in the previous section, you can disable
 the warning for custom marks by registering them in your ``pytest.ini`` file or
 using a custom ``pytest_configure`` hook.