release/1.6.0: fix bug in documentation for Hercules, site config updates/cleanup for ParallelWorks#943

climbfuji merged 3 commits intoJCSDA:release/1.6.0JCSDA/spack-stack:release/1.6.0from

climbfuji:feature/bugfix_doc_herculesclimbfuji/spack-stack:feature/bugfix_doc_herculesCopy head branch name to clipboard