Updating test command in readme

[jamiehewitt15]

Changes proposed in this PR:

• The readme currently has the wrong test command, this PR updates it

[kremalicious]

Text and code don’t match, as we have a total of 4 test commends and at least 2 should be mentioned here (test:unit & test:integration). Or create a npm script test which actually does what the text says, and then we don’t need to change the command here

[jamiehewitt15]

Or create a npm script test which actually does what the text says, and then we don’t need to change the command here

Yeah, that's better. Presumably it was there before and got deleted by mistake.

[kremalicious]

To quote:

Executing linting, type checking, unit, and integration tests

Last push does not make npm test run all those

[codeclimate]

Code Climate has analyzed commit dacc6aa 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 79.9% (0.0% change).

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