Testing of the @doc-json output

Update README.md package index

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README.md
··· 6 6 |------------|---------|----------| 7 7 | [**day10**](https://tangled.org/jon.recoil.org/day10.git) | day10 | A short synopsis | 8 8 | | day10-web | Web dashboard for day10 documentation status | 9 - | [**js_top_worker**](https://github.com/jonnyfiveisonline/js_top_worker.git) | js_top_worker | JS Toplevel worker | 9 + | [**js_top_worker**](https://tangled.sh/@jon.recoil.org/js_top_worker.git) | js_top_worker | JS Toplevel worker | 10 10 | | js_top_worker-bin | JS Toplevel worker web | 11 11 | | js_top_worker-client | JS Toplevel worker client | 12 12 | | js_top_worker-client_fut | JS Toplevel worker client | ··· 15 15 | | js_top_worker-web | JS Toplevel worker web | 16 16 | | js_top_worker_rpc_def | JS Toplevel worker IDL generator | 17 17 | [**mime_printer**](https://github.com/jonludlam/mime_printer.git) | mime_printer | Mime printer for rich toplevels | 18 - | [**odoc**](https://github.com/jonnyfiveisonline/odoc.git) | odoc | OCaml Documentation Generator | 18 + | [**odoc**](https://tangled.sh/@jon.recoil.org/odoc.git) | odoc | OCaml Documentation Generator | 19 19 | | odoc-driver | OCaml Documentation Generator - Driver | 20 20 | | odoc-md | OCaml Documentation Generator - Markdown support | 21 21 | | odoc-parser | Parser for ocaml documentation comments |