dask chunking tutorial outline about xarray-tutorial

[scottyhq]

Agreed this would be great to document thoroughly. See also this relevant issue + discussion in rioxarray corteva/rioxarray#253

[djhoese]

demonstrate relation between chunk size and computation time / number of tasks with a simple example?

• maybe even memory usage

This would be huge! This comes up often in Satpy where users want to process satellite images on their local machine but they only have 8GB or 16GB of memory. If someone can make a good diagram showing chunks being processed by a worker thread/process and how changing the size of all chunks or number of workers contributes to the overall memory usage that would be such a help when explaining this to users.

[dcherian]

forgot to cc @rybchuk!