docfix: contribute.md in Readme.md#682

laciferin2024 wants to merge 2 commits intolibp2p:masterlibp2p/go-libp2p-pubsub:masterfrom

ideo-org:docfix/contrib-in-readmeideo-org/go-libp2p-pubsub:docfix/contrib-in-readmeCopy head branch name to clipboard