Golangci-lint: wiki: "How to add a custom linter" page is outdated

[Rikkuru]

on wiki page https://github.com/golangci/golangci-lint/wiki/How-to-add-a-custom-linter in step 3 there is an old link that returns 404 now - pkg/lint/lintersdb/lintersdb.go

It needs to be changed to pkg/lint/lintersdb/manager.go

[Rikkuru]

also in step 5 make readme command is wrong
make README.md works

[jonathonlacher]

Could this information instead be added to the README or some sort of other doc inside the repo?

The primary advantages of this method:

• PRs can be made by community to update the process as needed.
• The instructions on how to add a linter (or any other instructions added in future) wil be tied to that specific version of the code.