Add Human Cell Atlas to ODP registry

[hannes-ucsc]

Description of changes:

Add Human Cell Atlas.

Logo is https://www.humancellatlas.org/wp-content/themes/new_human_cell_atlas/dist/assets/img/logo-hca.png

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[crichica]

@hannes-ucsc, try to change the resource type to "S3 Bucket" instead of "S3 bucket". The build is checking against the resources.yaml file.

[crichica]

Make sure your links in explore match the regular expression: explore_regex = re.compile(r"^[.+](https?://[\w\d.-/#?&%=]+)$").

Check datasets/amazon-berkeley-objects.yaml for examples on how to do this.

[hannes-ucsc]

There may be backslashes missing in the regex you posted but I think I understand what the intent is: These links are Markdown, not bare URLs.

[berylrab]

@hannes-ucsc can you update the branch so it is up to date with the main branch please?

[berylrab]

Also, @hannes-ucsc please add the "life sciences" tag, this helps us track all our LS datasets.

[hannes-ucsc]

@berylrab, both done.