….com/convexset/dask into fix-tsqr-case-chunk-with-zero-height

* 'fix-tsqr-case-chunk-with-zero-height' of https://github.com/convexset/dask:
  fixed typo in documentation and improved clarity
  Implement .blocks accessor (dask#3689)
  Fix wrong names (dask#3695)
  Adds endpoint and retstep support for linspace (dask#3675)
  Add the @ operator to the delayed objects (dask#3691)
  Align auto chunks to provided chunks, rather than shape (dask#3679)
  Adds quotes to source pip install (dask#3678)
  Prefer end-tasks with low numbers of dependencies when ordering (dask#3588)
  Reimplement argtopk to release the GIL (dask#3610)
  Note `da.pad` can be used with `map_overlap` (dask#3672)
  Allow tasks back onto ordering stack if they have one dependency (dask#3652)
  Fix extra progressbar (dask#3669)
  Break apart uneven array-of-int slicing to separate chunks (dask#3648)
  fix for `dask.array.linalg.tsqr` fails tests (intermittently) with arrays of uncertain dimensions (dask#3662)