Sync wiki -> header

include/SDL_clipboard.h

@@ -45,6 +45,8 @@ extern "C" {
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetClipboardText
  * \sa SDL_HasClipboardText
  */
@@ -61,6 +63,8 @@ extern DECLSPEC int SDLCALL SDL_SetClipboardText(const char *text);
  *          on the returned pointer when done with it (even if there was an
  *          error).
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HasClipboardText
  * \sa SDL_SetClipboardText
  */