[#18] [tec] Execute migrations at Heroku starting
[#18] [tec] Execute migrations at Heroku starting

Provide a Procfile which executes migrations (rails db:migrate) and then
starts the server (rails server). It makes running migrations after deploying
optional.

marienfressinaud/taglibro,marienfressinaud/taglibro,marienfressinaud/taglibro