Is your feature request related to a problem? Please describe.
Sometimes I copy/paste JSON and leave a comma where I shouldn't.
Describe the solution you'd like
I'd like to not have to worry whether an element needs a trailing comma or not. Comments in JSON would be nice too.
Additional context
There are JSON parsing libraries that allow for this type of structure. https://github.com/tailscale/hujson has a Standardize function that just sanitizes raw bytes before you pass it to the standard json library.