Sync SDL3 header -> wiki

SDL3/SDL_HINT_MOUSE_RELATIVE_CLIP_INTERVAL.md

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+###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!)
+# SDL_HINT_MOUSE_RELATIVE_CLIP_INTERVAL
+
+Controls how often SDL issues cursor confinement commands to the operating system while relative mode is active, in case the desired confinement state became out-of-sync due to interference from other running programs.
+
+## Header File
+
+Defined in [<SDL3/SDL_hints.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_hints.h)
+
+## Syntax
+
+```c
+#define SDL_HINT_MOUSE_RELATIVE_CLIP_INTERVAL  "SDL_MOUSE_RELATIVE_CLIP_INTERVAL"
+```
+
+## Remarks
+
+The variable can be integers representing miliseconds between each refresh.
+A value of zero means SDL will not automatically refresh the confinement.
+The default value varies depending on the operating system, this variable
+might not have any effects on inapplicable platforms such as those without
+a cursor.
+
+----
+[CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryHints](CategoryHints)
+