Implementation of Insertion Sort in c language

[Shivani-001]

No description provided.

[Shivani-001]

Please merge this commit.

[khagapati-bagh]

Hi @Shivani-001, Thank you for your contribution.

Here are some comments for you.

1. Please follow the contribution guidelines and update accordingly.
2. After formating your code with the online code formatter, make sure your array element as it is int arr[] = { 12, 11, 13, 5, 6 };