[joss-review] specify need for array-storage in example run

[zonca]

In https://bayeseor.readthedocs.io/en/latest/usage.html#test-dataset
it would be useful to also specify we need 16 GB in ./array-storage

[jburba]

As I was going to add this to the docs, I realized we already have a statement to this effect in the first sentence of the second paragraph under the "Test Dataset" heading

To build the matrices (which will require ~17 GB of disk space)...

Does this address your comment?

[zonca]

please also specify the name of the folder,
for example on HPC I would have stored bayeseor in my home, but then symlinked array-storage from my scratch space to avoid filling up my home with all that data.