Documentation: array.rst

[ethomag]

This chapter looks strange on a few places. I think it's because of a paragraph ending with "::" and the next paragraph is a ".. doctest::".
I believe the remedy is to replace the "::" with a single ":" in the first paragraph.
I don't have the repo forked, so I can't make a pull request (I think ?)

[nalimilan]

Thanks. Forking the repo is very easy, you can even make a PR directly using GitHub.

[timholy]

In your webbrowser, just navigate to the file and then click the little pencil icon.

[ethomag]

Thanks @timholy , just tried it. Made the fix and proposed a pull request.

[vchuravy]

Also fixed in 55010db

but let's merge @ethomag version, since PR #15753 will need some more review and discussions.