Connected registration form to firebase

[singhtaran1005]

Issue Number

ISSUE #

Describe the changes you've made

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

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Additional context (OPTIONAL)

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Test plan (OPTIONAL)

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

Checklist

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] 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.