Fix typos in CHANGELOG

Author: nicoddemus

CHANGELOG.rst

@@ -48,7 +48,7 @@ Features
 Bug Fixes
 ---------
 
-- `#2220 <https://github.com/pytest-dev/pytest/issues/2220>`_: Fix a bug where fixtures overriden by direct parameters (for example parametrization) were being instantiated even if they were not being used by a test.
+- `#2220 <https://github.com/pytest-dev/pytest/issues/2220>`_: Fix a bug where fixtures overridden by direct parameters (for example parametrization) were being instantiated even if they were not being used by a test.
 
 
 - `#3695 <https://github.com/pytest-dev/pytest/issues/3695>`_: Fix ``ApproxNumpy`` initialisation argument mixup, ``abs`` and ``rel`` tolerances were flipped causing strange comparsion results.
@@ -62,7 +62,7 @@ Bug Fixes
 Improved Documentation
 ----------------------
 
-- `#3295 <https://github.com/pytest-dev/pytest/issues/3295>`_: Correct the usage documentation of ``--last-failed-no-failures`` by adding the missing ``--last-failed`` argument in the presented examples, for they are missleading and lead to think that the missing argument is not needed.
+- `#3295 <https://github.com/pytest-dev/pytest/issues/3295>`_: Correct the usage documentation of ``--last-failed-no-failures`` by adding the missing ``--last-failed`` argument in the presented examples, because they are misleading and lead to think that the missing argument is not needed.