Fix formatting on Json Output

[codingo]

We now have working json output but it's all on one line. I resolved this in a prior project (https://github.com/codingo/Ransomware-Json-Dataset) however I think it was a different library, simplejson. It may be solvable in the current implementation without adding new dependencies (current implementation is quite clean and shouldn't be rewritten). Merits investigation to see if cleanly formatted json can be outputted without a rewrite..

[schedutron]

Can I work on this?

[codingo]

Sure thing @schedutron !

[xuvez]

Hi @schedutron check this: https://docs.python.org/2/library/json.html#basic-usage
At the "indent" parameter