doc: updated credits and changelog.

doc/python/pages/changelog.rst

@@ -45,6 +45,10 @@ Changelog
     issues with shitty IDE indexers such as Eclipse, confusing these with
     Python's ``<Python.h>``
 -   Applied minor performance fixes suggested by Clang Tidy (see :gh:`mosra/magnum-bindings#10`)
+-   Linux and macOS builds were migrated from Travis to Circle CI
+-   The Homebrew package now uses `std_cmake_args` instead of hardcoded build
+    type and install prefix, which resolves certain build issues (see
+    :gh:`mosra/homebrew-magnum#6`)
 
 `2020.06`_
 ==========

doc/python/pages/credits.rst

@@ -71,5 +71,6 @@ involved!
 
 -   **Aaron Gokaslan** (:gh:`Skylion007`) --- minor performance fixes
 -   **Cameron Egbert** (:gh:`cegbertOculus`) --- initial Windows port
+-   **John Laxson** (:gh:`jlaxson`) --- Homebrew package improvements
 -   **Vladimir Gamalyan** (:gh:`vladimirgamalyan`) --- expanding
     :ref:`gl.Renderer` bindings