Integrate badges of services

[tboerger]

I would suggest to include a specific amount of badges, I would suggest a list of these:

• DroneCI, like
• Codecov.io, like
• Go report, like
• Go doc, like
• Docker, like
• Gitter, like

Anything that I missed?

[xinity]

list is fine, not sure we should add more btw

[tboerger]

I think with these badges we got everything you can use for a Go project.