Sync SDL3 wiki -> header

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include/SDL3/SDL_system.h

@@ -626,6 +626,8 @@ extern SDL_DECLSPEC bool SDLCALL SDL_SendAndroidMessage(Uint32 command, int para
  * \threadsafety It is safe to call this function from any thread.
  *
  * \since This function is available since SDL 3.6.0.
+ *
+ * \sa SDL_IsTablet
  */
 extern SDL_DECLSPEC bool SDLCALL SDL_IsPhone(void);