【PHP】Composer installすると「 It will be stored in “/root/.composer/auth.json” for future use by Composer.」とかでる

Head to https://github.com/settings/tokens/new?scopes=repo&description=Composer+2020-03-25+0827
to retrieve a token. It will be stored in "/root/.composer/auth.json" for future use by Composer.
Token (hidden)

GithubへログインしてTokenを生成

コピペする