Auto update image

Currently we only generate the image based on the details the user provides, this is manual procedure and it needs to be improved. Instead we could connect to the Codeforces API and take the ratings from there and keep updating it at specific interval. This also means that we need some storage, where the image will be automatically update without changing its accessing link.

For CodeChef we can follow the usual scraping methods, it would be simple since we only need to extract the ratings and the handle name (which can also be simply obtained from the profile link itself).

Finally instead of providing the user not only the image, we will provide him a url of the image (which won't change even though we change the image later).