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update dune-release section of CONTRIBUTING.md

dune-release won't publish docs as of
https://github.com/ocaml/opam-repository/pull/27358

I also wonder if the instructions to write ~/.config/dune/release.yml are necessary,
considering dune-release prompts for them (which presumably wasn't the case back when
these instructions were written).

Changed files
+1 -2
+1 -2
CONTRIBUTING.md
···
* parses (and enforces a format, can be good or bad) for the changelog, to put it in the tag
* creates the github release with that information
* builds, run tests, lint
-
* uploads the documentation
* creates and uploads a separate archive (also has an option to include the git submodules)
* works only if your project is on GitHub
* doesn’t support force-pushed tags
···
First, make sure your project is using dune and is hosted on GitHub.
Then, make sure you’ve forked opam-repository on GitHub. If not go to https://github.com/ocaml/opam-repository/fork
-
Then, create a new file in `~/.config/dune/release.yml` with the content as indicated below, change `<username>` by your local username and `<github-user>` by your own github username:
```
remote: git@github.com:<github-username>/opam-repository.git
local: /home/<username>/.cache/dune/opam-repository/
···
* parses (and enforces a format, can be good or bad) for the changelog, to put it in the tag
* creates the github release with that information
* builds, run tests, lint
* creates and uploads a separate archive (also has an option to include the git submodules)
* works only if your project is on GitHub
* doesn’t support force-pushed tags
···
First, make sure your project is using dune and is hosted on GitHub.
Then, make sure you’ve forked opam-repository on GitHub. If not go to https://github.com/ocaml/opam-repository/fork
+
Then, create a new file in `~/.config/dune/release.yml` with the content as indicated below, change `<username>` by your local username and `<github-username>` by your own github username:
```
remote: git@github.com:<github-username>/opam-repository.git
local: /home/<username>/.cache/dune/opam-repository/