Add Linear Search in C

[rzuckerm]

To request a new code snippet, please fill out the following:

Project name: Linear Search
Project link: https://sampleprograms.io/projects/linear-search
Language: C

The project link must be a link to a project on the Sample Programs Website project list.
If you would like to add a new project to the Sample Programs Website,
please first make a pull request to the Sample Programs Website.

[Shashikumar-ezhilarasu]

Hi, I would like to work on this issue. Could you please assign it to me? @rzuckerm

[rzuckerm]

@Shashikumar-ezhilarasu You are assigned

[Shashikumar-ezhilarasu]

Thank you ,i will update you once the work is done.

[Shashikumar-ezhilarasu]

I'm done creating the pr ,can you please check @rzuckerm

[rzuckerm]

There is no PR. If there were, I would be notified, so there is no need to tell me about PRs in issues.