Added the headings in multiple functions of the config.go file

[ibilalkayy]

Hey there,

I just added the headings in multiple functions of the config.go file.

Thank you!

[monstermunchkin]

@ibilalkayy Please stick to a single PR for all the header changes you make. That will make it easier to review.

[tomponline]

Yes I think having fewer PRs, still with several commits to allow backport would be better than a steady stream of small PRs.

Also I'd like to understand more about the reasons you are making these changes?

Are you working on a project that is using LXD?

[ibilalkayy]

@tomponline No I am not currently working on a project that is using LXD but instead, I found this project responsive because I checked some of the closed PRs and saw that the discussion was really helpful and this is enough for me at least to start contributing into it. Currently, I am learning how the LXD works and I am playing with it.

[ibilalkayy]

@monstermunchkin Alright. I will send a single PR with multiple commits. I apologize for my mistake.