I'd love to see a bit of the docs telling me how this improves on pkg/errors and go 1.13. At first pass, I'm not sure? It seems to have a bit of a cleaner pres

I'd love to see a bit of the docs telling me how this improves on pkg/errors and go 1.13. At first pass, I'm not sure? It seems to have a bit of a cleaner presentation in the error stack -- Its an array, which feels nicer than a string.