PR #18: Drop the guide citation and the class from a rule

Agent Instructions

Click a suite to see its builds. Example suite for a50a0e4d :

https://staging.nix-ci.com/gh:NorfairKing:hopinion/refs%2Fpull%2F18%2Fmerge/a50a0e4d81c7680909f4d5e0c9b6737f45c49533

This page is also available in machine-friendly formats. Request one with the Accept header:

• curl --netrc -H 'Accept: application/json' https://staging.nix-ci.com/gh:NorfairKing:hopinion/refs%2Fpull%2F18%2Fmerge
• curl --netrc -H 'Accept: text/markdown' https://staging.nix-ci.com/gh:NorfairKing:hopinion/refs%2Fpull%2F18%2Fmerge

For more instructions, fetch https://staging.nix-ci.com/instructions .