Update Biological Expression Language topic URL

[cthoyt]

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• Suggesting edits to an existing topic or collection
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Editing an existing topic or collection

I'm suggesting these edits to an existing topic or collection:

• Image (and my file is *.png, square, dimensions 288x288)
• Content (and my changes are in index.md)

The old openbel.org website has now been co-opted by a company that's advertizing their services, so there's a new purely community-driven site to replace it. This PR switches the URL and GitHub organization for the biological-expression-language topic to reflect that.

Curating a new topic or collection

• I've formatted my changes as a new folder directory, named for the topic or collection as it appears in the URL on GitHub (e.g. https://github.com/topics/[NAME] or https://github.com/collections/[NAME])
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Please replace this line with an explanation of why you think this topic or collection should be curated.

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• My suggested edits are not about an existing topic or collection, or at least not a single one
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Please replace this line with an explanation of your proposed changes.

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[deniseyu]

Thanks for the contribution, @cthoyt! For my context (as a non-scientist 😄), what is the relationship between these two projects? Is https://bel.bio/ deprecated in favor of https://biological-expression-language.github.io/ within the BEL community? Thanks in advance!

[cthoyt]

The biological expression language was created by Selventa, Inc. and made public through their GitHub repository https://github.com/openbel. They also sponsored the community OpenBEL organization and website https://openbel.org. Since Selventa dissolved in 2016, the community has had a re-emergence, but one of the ex-Selventa employees recently used their access to the domain registration to redirect the community page to their company's page (which is https://bel.bio). The https://github.com/openbel organization also used to be maintained by the community, but the same person also recently removed access from the other community members.

The https://biological-expression-language.github.io/ is a neutral, more inclusive site that will support the community and not just a single business, which could also go defunct like Selventa

[deniseyu]

Thanks for the explanation @cthoyt!