PR #75: Carry a codec's comments into the option it generates

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https://staging.nix-ci.com/gh:NorfairKing:autodocodec/refs%2Fpull%2F75%2Fmerge/8a3e6f81b370d2a659101762e92d83da58017e5e

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• curl --netrc -H 'Accept: text/markdown' https://staging.nix-ci.com/gh:NorfairKing:autodocodec/refs%2Fpull%2F75%2Fmerge

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