doc: updated changelog and credits.

doc/changelog.dox

@@ -112,6 +112,10 @@ See also:
     values it references. Existing code needs to be changed to say
     @cpp TrackView<const K, const V> @ce instead of @cpp TrackView<K, V> @ce.
 
+@subsection changelog-latest-documentation Documentation
+
+-   Various fixes (see [mosra/magnum#390](https://github.com/mosra/magnum/pull/390))
+
 @section changelog-2019-10 2019.10
 
 Released 2019-10-24, tagged as

doc/credits.dox

@@ -150,7 +150,7 @@ Are the below lists missing your name or something's wrong?
     WebGL 2 build fixes
 -   **Marco Melorio** ([\@Melix19](https://github.com/Melix19)) --- iOS test
     updates and fixes, cursor management in @ref Platform::Sdl2Application and
-    @ref Platform::GlfwApplication
+    @ref Platform::GlfwApplication, doc fixes
 -   **Max Schwarz** ([\@xqms](https://github.com/xqms)) --- `Any*` plugin
     improvements, fixes in the @ref GL library
 -   **Michael Tao** ([\@mtao](https://github.com/mtao)) --- Gentoo build fixes