Fix typo in customToJSON documentation

[dushmanta05]

This pull request fixes Issue #7337.

It fixes a typo in the customToJSON section of the Sails.js documentation. The word action2 was corrected to action.

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[DominusKelvin]

Hey @dushmanta05 thanks for the PR on first look it may look like a typo but actions2 is an actual concept in Sails and that line in the docs was referring to whether you use res.send with classic(Express-like) actions or the modern machine implementation of actions called action2.

You can see here for more on actions2.

You can also see this reference in the docs for actions2

[DominusKelvin]

@dushmanta05 I am closing this PR now thanks for taking out the time for submitting this. 💯

[dushmanta05]

@DominusKelvin Thanks for the confirmation.