Update file docker-compose.smith.yml

assigned to @c-geek

assigned to @pokapow and unassigned @c-geek

requested review from @c-geek

requested review from @pokapow and removed review request for @c-geek

requested review from @c-geek and removed review request for @pokapow

Smith node do not need to gossip a RPC endpoint, the mirror node can do it well itself. We could apply this suggestion on the docker-compose.yml file at the root of the repo, but it aims to be minimal and the more detailed documentation is hosted on duniter.org.