Fixing minor errors in documentation

[sprynt001]

I was going through the tutorials and documentation and noticed a couple of things which I think need to be corrected. I am sure of one, but I want to enquire about the other.

1. In the last cell of Advanced indexing->Indexing with coordinate arrays the results for z[1, [1, 3]] and z[[1, 1], [1, 3]] are wrong, they should be array([6, 8])
2. The last sentence in the second paragraph of Chunks section in specification says:

The chunk with indices (0, 0) provides data for rows 0-1000 and columns 0-1000 and is stored under the key “0.0”; the chunk with indices (2, 4) provides data for rows 2000-3000 and columns 4000-5000 and is stored under the key “2.4”;

I believe chunk with indices (0,0) provides data for rows 0-999 and columns 0-999 and (2,4) for rows (2000-2999) and columns (4000-4999). Is this correct or am I misunderstanding something?

I am happy to updated the documentation as necessary and generate a PR.

[joshmoore]

Thanks for reading so carefully, @sprynt001! Do please open a PR if you are so inclined.