Add Documentation - Observable.timestamp - Description

[KiltedCode]

Add description to the docs for operator. Include description of what the operator does, how it works, as well as any values it returns and fully defining parameters including name, type, attribute and description.

[david-driscoll]

@RhGeek Is there a specific reasoning you're spamming the repository with 3 issues per operator about documentation?

[KiltedCode]

@david-driscoll it is a part of the docs initiative to add these for missing operators ReactiveX/rxjs-docs#4

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.