Add CHANGELOG for pytest-dev#158

Author: nicoddemus

CHANGELOG.rst

@@ -4,7 +4,13 @@
 - ``qtbot`` fixture now can capture Qt virtual method exceptions in a block using
   ``capture_exceptions`` (`#154`_). Thanks to `@fogo`_ for the PR.
 
+- ``qtbot`` now exposes the `qWaitForWindowExposed`_ method for PyQt5.
+  Thanks `@The-Compiler`_ for the request (`#158`_).
+
+.. _qWaitForWindowExposed: https://doc.qt.io/qt-5/qtest.html#qWaitForWindowExposed
+
 .. _#154: https://github.com/pytest-dev/pytest-qt/issues/154
+.. _#158: https://github.com/pytest-dev/pytest-qt/issues/158
 
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