Fixed typos in header file documentation comments.
diff --git a/include/SDL_haptic.h b/include/SDL_haptic.h
index b667112..9298a7d 100644
--- a/include/SDL_haptic.h
+++ b/include/SDL_haptic.h
@@ -900,7 +900,7 @@ extern DECLSPEC int SDLCALL SDL_JoystickIsHaptic(SDL_Joystick * joystick);
/**
* \brief Opens a Haptic device for usage from a Joystick device.
*
- * You must still close the haptic device seperately. It will not be closed
+ * You must still close the haptic device separately. It will not be closed
* with the joystick.
*
* When opening from a joystick you should first close the haptic device before
@@ -957,7 +957,7 @@ extern DECLSPEC int SDLCALL SDL_HapticNumEffects(SDL_Haptic * haptic);
extern DECLSPEC int SDLCALL SDL_HapticNumEffectsPlaying(SDL_Haptic * haptic);
/**
- * \brief Gets the haptic devices supported features in bitwise matter.
+ * \brief Gets the haptic device's supported features in bitwise manner.
*
* Example:
* \code