Fix documentation mistake for glm_vec3_rotate
In the documentation, for glm_vec3_rotate, correctly labels `angle` as `in` rather than `out`.
@@ -392,7 +392,7 @@ Functions documentation
Parameters:
| *[in, out]* **v** vector
| *[in]* **axis** axis vector (will be normalized)
- | *[out]* **angle** angle (radians)
+ | *[in]* **angle** angle (radians)
.. c:function:: void glm_vec3_rotate_m4(mat4 m, vec3 v, vec3 dest)
