Apply suggestions from code review: capitalize Dandiset

Co-authored-by: Kabilar Gunalan <[email protected]>

Author: yarikoptic

docs/user-guide-using/accessing-data/downloading.md

@@ -88,7 +88,7 @@ alt="web_dandiset_files"
 style="width: 60%; height: auto; display: block; margin-left: auto;  margin-right: auto;"/>
 
 Each Dandiset is represented as a separate DataLad dataset.
-<https://github.com/dandi/dandisets/> is a [DataLad superdataset](https://handbook.datalad.org/en/latest/glossary.html#term-DataLad-superdataset) that includes all individual dandiset datasets as subdatasets ([git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules)).
+<https://github.com/dandi/dandisets/> is a [DataLad superdataset](https://handbook.datalad.org/en/latest/glossary.html#term-DataLad-superdataset) that includes all individual Dandiset datasets as subdatasets ([git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules)).
 Where present, individual [Zarr](https://zarr.dev/) files are included as subdatasets ([git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules)) hosted in the GitHub organization <https://github.com/dandizarrs/>.
 
 The Git revision histories of each dataset reflect the Dandiset's draft state as of each execution of the mirroring job.