doc: updated credits and changelog.

doc/changelog.dox

@@ -699,6 +699,8 @@ See also:
     `MAGNUM_SHADERCONVERTER_STATIC_PLUGINS` CMake options for linking static
     plugins to the command-line utilities. See @ref building-features for more
     information.
+-   The `FindSDL2.cmake` module now looks for `SDL2-static` as well (see
+    [mosra/magnum#594](https://github.com/mosra/magnum/pull/594))
 
 @subsection changelog-latest-bugfixes Bug fixes
 

doc/credits.dox

@@ -147,6 +147,7 @@ Are the below lists missing your name or something's wrong?
     improvements to Debian package building experience
 -   **Hilario Pérez Corona** ([\@hpcorona](https://github.com/hpcorona)) ---
     improvements to @cb{.cmake} android_create_apk() @ce
+-   **[\@hsdk123](https://github.com/hsdk123)** --- CMake improvements
 -   **Hugo Amnov** ([\@hugoam](https://github.com/hugoam)) --- Additions,
     usability improvements and performance optimization in the @ref GL library,
     buildsystem improvements and STL usage cleanup