Add Expense Tracker in C

[devmalik7]

Write a console-based Expense Tracker that:
Lets users add daily expenses (amount + category)
Saves them in a .csv or .txt file

[Dhanush-Annam]

Hi @devmalik7 , I would like to work on this please assign me.

[riddhima-7321]

Hii, Can you please assign this to me!

[devmalik7]

Hii, Can you please assign this to me!

Sure go ahead

[riddhima-7321]

Hey, can you check my PR, and suggest changes or merge it?

[riddhima-7321]

Can you please merge the PR, hacktoberfest ends tommorow!

[riddhima-7321]

@devmalik7 Please merge this PR, as Tommorow marks the end of hacktoberfest, It will be very helpful.

[riddhima-7321]

Hii @devmalik7 , I have made changes, can you please check and approve