fix(ENG-2912): CLI typos and doc changes

[ralph-mcteggart]

I was originally looking here for a defect related to the CLI before realising the required changes were in the API.

When reading through the docs I noticed some inconsistencies so updated while I was here

(ENG-2912)

[chrisimcevoy]

@ralph-mcteggart Your tests are (false positive) timing out because they're waiting for "Fully Synchronised" (with an "s") to appear in the command output here

[ralph-mcteggart]

@ralph-mcteggart Your tests are (false positive) timing out because they're waiting for "Fully Synchronised" (with an "s") to appear in the command output here

Cheers @chrisimcevoy! Was aware but haven't got round to fixing it. Appreciate the heads up though 😁

[qlty-cloud-legacy]

Code Climate has analyzed commit 99e0d00 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 71.5% (0.0% change).

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