Sync wiki -> header

include/SDL_keyboard.h

@@ -271,7 +271,7 @@ extern DECLSPEC void SDLCALL SDL_StopTextInput(void);
 /**
  * Dismiss the composition window/IME without disabling the subsystem.
  *
- * \since This function is available since SDL 2.0.22
+ * \since This function is available since SDL 2.0.22.
  *
  * \sa SDL_StartTextInput
  * \sa SDL_StopTextInput
@@ -281,8 +281,7 @@ extern DECLSPEC void SDLCALL SDL_ClearComposition(void);
 /**
  * Returns if an IME Composite or Candidate window is currently shown.
  *
- * \since This function is available since SDL 2.0.22
- *
+ * \since This function is available since SDL 2.0.22.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsTextInputShown(void);