Typo: simultaenous -> simultaneous.

doc/credits.dox

@@ -81,6 +81,7 @@ Big thanks to everyone involved!
 Are the below lists missing your name or something's wrong?
 [Let us know!](https://magnum.graphics/contact/)
 
+-   **[\@abgita](https://github.com/abgita)** --- minor typo fixes
 -   **Alan Jefferson** ([\@alanjfs](https://github.com/alanjfs)) --- extensive
     usability and first-time-use feedback
 -   **[\@Alan-FGR](https://github.com/Alan-FGR)** --- documentation fixes

modules/FindCorrade.cmake

@@ -79,7 +79,7 @@
 #   globals unique even across different shared libraries. Enabled by default
 #   for static builds.
 #  CORRADE_BUILD_MULTITHREADED  - Defined if compiled in a way that makes it
-#   possible to safely use certain Corrade features simultaenously in multiple
+#   possible to safely use certain Corrade features simultaneously in multiple
 #   threads
 #  CORRADE_TARGET_UNIX          - Defined if compiled for some Unix flavor
 #   (Linux, BSD, macOS)

src/Magnum/Vk/Device.h

@@ -551,7 +551,7 @@ class MAGNUM_VK_EXPORT Device {
          * @ref Vk-Device-raw for more information.
          *
          * @attention This operation is changing global state. You need to
-         *      ensure that this function is not called simultaenously from
+         *      ensure that this function is not called simultaneously from
          *      multiple threads and code using those function points is
          *      calling them with the same device as the one returned by
          *      @ref handle().

src/Magnum/Vk/Instance.h

@@ -511,7 +511,7 @@ class MAGNUM_VK_EXPORT Instance {
          * @ref Vk-Instance-raw for more information.
          *
          * @attention This operation is changing global state. You need to
-         *      ensure that this function is not called simultaenously from
+         *      ensure that this function is not called simultaneously from
          *      multiple threads and code using those function points is
          *      calling them with the same instance as the one returned by
          *      @ref handle().