Request to make a contribution

[aadityarengarajan]

Hello! I have a function to find the distance between 2 sets of coordinates (latitudes and longitudes) using the Great Circle Distance Formula.
1- Is there already such a script or may I raise a pull request with the script?
2- I'm doing this to take part in Hacktoberfest, should I add something to my pull request?
3- It's a very short script, and I'm not sure which category/folder I would put it into on this repository.

Please help.