Clarify usage of ?include_deleted on the times endpoints.

[MorganEPatch]

Fixes #52.

[athai]

+1

[Kennric]

Looks ok, but I think would be more clear with a note pointing out the record with the deleted_at set is visible - otherwise you have to read pretty carefully through the json to catch it.

[MorganEPatch]

To be fair, this does come after a section that already also includes GET /activities?include_deleted=true and GET /projects?include_deleted=true, which in turn is after a section that describes the behavior of include_deleted. This is just adding times to it for completeness (so no assumptions are made regarding the lack of example). I can make a more explicit note if that'd be preferred.

[Kennric]

We should point out that one of the returned records, when using include_deleted, is in fact a deleted record, and that we know this from the deleted_at field. We don't have to do that on every example, but at least one.

[pop]

+1

[Kennric]

Ok, that works. +1