Adjust docs artifact filename

[garrison]

I've been referencing the documentation artifact a lot lately. It'd be nice to have better filenames to work with.

Formerly: html_docs.zip extracted directly to the current directory.

With this PR: ckt_html_docs.zip extracts everything to a single subdirectory called ckt_html_docs.

[coveralls]

Pull Request Test Coverage Report for Build 8624282662

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 95.433%

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Totals
Change from base Build 8560627750:	0.0%
Covered Lines:	3448
Relevant Lines:	3613

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💛 - Coveralls

[garrison]

With this PR: ckt_html_docs.zip extracts everything to a single subdirectory called ckt_html_docs.

I checked the resulting artifact and verified that this is indeed the behavior under this PR.