Fixed User Details Validation

[hellosafwaan]

Issue Number

fixes #4

Describe the changes you've made

• Used RegEx module to find matching pattern for Name, Contact & Email ID.
• If a user enters invalid details (which is not recognized by the pattern specified in program) such as name, number, email id, the user is prompted with an error.

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

NA

Additional context (OPTIONAL)

Add any other context or screenshots about the feature request here.

Test plan (OPTIONAL)

A good test plan should give instructions that someone else can easily follow. How someone can test your code?

Checklist

• [ ] I have added my name in the contributors list at the end of README.md file.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.
• [x] The title of my pull request is a short description of the requested changes.
• [x] Open Source Program names (LGM-SOC)

[QAZIMAAZARSHAD]

Resolve conflicts.

[hellosafwaan]

Working on it.

[hellosafwaan]

check it @QAZIMAAZARSHAD

[QAZIMAAZARSHAD]

Nope.

Fetch upstream. Try with a separate branch.