fix typos

[ccoVeille]

• Format files before working on them
• Fix JSON acronym
• Fix typos and style
• Use backtick for JSON node name, not quotes

[ccoVeille]

Hi @tidwall

Is there anything you need from me before reviewing my PR?

I'm asking because I may also work on a code review based on golangci-lint input.

I wanted to start with a simple PR to see if you were open for PR contributions.

I also, contributed to https://github.com/tidwall/sjson/pull/82

And I intended to open a code review on sjson too.