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C program to check whether a given number is palindrome or not

Write a C program to read a string and check whether it is a palindrome
or not (without using library functions). Output the given string along
with suitable message.Palindrome is a word, sentence, group of
characters, or number, that remains same, when reversed.
For example: GADAG, 9009
Revert "Added GitHub URL"

This reverts commit 548acce67dd70821265246c8bb3b26a8451489ae.
Revert "Revert "Added GitHub URL""

This reverts commit 0d828a9463a90904d4776e68e62db3e533ee7f6d.