Show index for array's elements
Show index for array's elements [i]

@lauriro any news about this PR
I think is a usefull feature and a option is available to activate the new feature
First of all, thank you @Karacala for your contribution.
I have been thinking about this feature in silence and I am not completely satisfied yet.
Indices can be useful but not for arrays with 2-3 item. Always showing them is a lot of noise. I tried to show them on hover like date info, then start thinking, that json-pointer could be more useful.
Currently I am thinking about showing json-pointer on click.
not for arrays with 2-3 item
Agree. Show indices on hover can resolved this issue.
json-pointer on click.
Would be add in another PR ?