add company GMBapi

[gergan-gmbapi]

Adding new company GMBapi.com

• added to the list in README
• added file in company-profiles with proper structure including vacancy url

DO NOT DELETE ANYTHING IN THIS COMMENT. -->

• [x] This PR contains housekeeping only (URL edits, copy changes etc) - if this is checked, delete other lines that don't apply
• [x] You are an employee of the company mentioned and confirm all included details are correct.
• [x] You know your alphabet - company is listed in alphabetical order in the README.md file.
• [x] The company directly hires employees. No bootcamps / freelance sites / etc
• [x] The company hires remote employees, or positions are available to remote workers and are clearly illustrated as such.
• [x] A company profile is included - This is required for new additions.
• [x] An entry has been added or edited within the readme.md file.
• [x] Remote status has details regarding how the culture includes remote employees, how the company integrated remote workers, etc
• [x] Region details the geographic regions in which this company employees can reside. For more details see the instructions in the example company profile.
• [x] 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

[dougaitken]

Hey there, sorry for the delay thanks for contributing, it is appreciated @gergan-gmbapi