docs(datasets): blacken code in rst literal blocks

[deepyaman]

Description

Basically, auto-format the code in docstrings.

Context

Because it bothers me, because I'm me. Also, helps catch silly issues for kedro-org/kedro#2287 (since at least it validates the AST).

Possible Implementation

#362 (currently for one dateset, but it just needs to be extended by marking the rest of these as explicit pycon blocks)

Possible Alternatives

[astrojuanlu]

If this is for kedro-datasets, should we transfer this issue?

[deepyaman]

If this is for kedro-datasets, should we transfer this issue?

I added it here, so it can be added to the sprint board (needs to be in the main repo for that, right?).

If not, both this and #366 can be in kedro-plugins, yes.

[stichbury]

If this is for kedro-datasets, should we transfer this issue?

I added it here, so it can be added to the sprint board (needs to be in the main repo for that, right?).

You can have something in a different repo and put it in the project (right hand sidebar) so it appears on the board. So I've moved this and #366