[improvement] - Error handling in code and readme docs has improved

[Blacksujit]

issue Number: #8

Improvement :

1.) Improved the error handling as mentioned in the issue number 8 and for future the better code readebility and error catching can be done

2.) for the same comments are also added Where there is code changes have been made

3.) On addition the readme docs has also improved made the language more engaging and efficient for any user to understand in one read .

[Berat-O]

Thank you for your contribution! I've reviewed the changes in your pull request, and it looks good to me.