Improvements in documentation

[Codeansh]

What bug or feature you wants to report.

In the code, there are some possible improvements in documentation. As an example in /personal_loant route, one query parameter is loan_start_date (string), which should be more specific (add a description like "dd/mm" or "mm/yy" etc ). There may be more issues like this, please assign this issue to me and I'll improve these.

[ighoshsubho]

Go ahead @Codeansh :)

[Codeansh]

Thanks @ighoshsubho, I am working on it.