Small typo and indentation fixes

[maxgabut]

Change one sentence for what I think is the correct form (would be great if a native speaker could confirm or infirm that).

Change some code samples to get a uniform indentation style.

[mbeaudru]

Thanks @maxgabut ! 👌 Seems better to me this way indeed. Maybe I could reformat the markdown using prettier for event greater results and consistency in the future