docs(memory): moving the actual documentation on the header

- The documentation on the header allow u to see on the files where the
header is inclued

memory/ft_memcmp.c

@@ -6,24 +6,12 @@
 /*   By: rparodi <marvin@42.fr>                     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/07 16:49:04 by rparodi           #+#    #+#             */
-/*   Updated: 2025/09/01 16:40:58 by rparodi          ###   ########.fr       */
+/*   Updated: 2025/09/05 16:26:04 by rparodi          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include <unistd.h>
 
-/**
- * @brief Compares two memory blocks
- * 
- * @param s1 Pointer to the first memory area
- * @param s2 Pointer to the second memory area
- * @param n Number of bytes to compare
- * 
- * @return An integer indicating the relationship between the two memory areas:
- *         - `< 0` if `s1` is less than `s2`
- *         - `0` if `s1` equals `s2`
- *         - `> 0` if `s1` is greater than `s2`
- */
 int	ft_memcmp(const void *s1, const void *s2, size_t n)
 {
 	size_t			i;