[biocaml/biocaml] 0138b9: various fixes to be dune-release compatible

[pveber]

Branch: refs/heads/master
Home: https://github.com/biocaml/biocaml
Commit: 0138b9b669e14e5e7287ba7eff78fd47e0331350
https://github.com/biocaml/biocaml/commit/0138b9b669e14e5e7287ba7eff78fd47e0331350
Author: Philippe Veber <philipp...@gmail.com>
Date: 2021-07-20 (Tue, 20 Jul 2021)

Changed paths:
M Changes
M biocaml.opam
M dune-project

Log Message:
-----------
various fixes to be dune-release compatible

- information is now in dune-project
- opam file is generated
- homepage is set to github (dune-release fails otherwise)