Add company profile for Giant Swarm

[rossf7]

This is a modified version of the Contributing Guidelines.

This pull request adheres to the repository's Code of Conduct.

• I am an employee of the company mentioned and confirm all included details are correct
• This PR contains housekeeping only (URL edits, copy changes etc)
• You know your alphabet - company is listed in alphabetical order in the README
• The company directly hires employees. No bootcamps / freelance sites / etc
• The company hires remote employees, or positions are available to remote workers and are clearly illustrated as such
• A company profile is included - Required for new additions. (This can be a basic outline but at least something please)
• Remote status has details regarding how the culture includes remote employees, how the company integrated remote workers, etc
• Region details the geographic regions in which this company's employees can reside. For more details see the instructions in the example company profile.
• How to apply details the best approach for new applications, page on site where open position are listed, and any other help available for job hunters

[LarissaKMLL]

do you have an overview of the current profile? Can work on the profile?

[rossf7]

Closing this for now. As we want to do an internal review of the company profile.

[dougaitken]

WFM - thanks for getting this started @rossf7 @LarissaKMLL

[rossf7]

@dougaitken Thanks for the reminder. I've updated our profile and reopened.