Commands in such sections are also here for convenience but might be outdated (resort to the document linked to above, in this case):
{
bash -c "$(curl -LSf "https://raw.githubusercontent.com/stroparo/sidra/master/setup.sh" \
|| curl -LSf "https://bitbucket.org/stroparo/sidra/raw/master/setup.sh")"
. ~/.zdra/zdra.sh
zdraplugin.sh "stroparo@bitbucket.org/stroparo/ds-stroparo" \
|| zdraplugin.sh "stroparo@github.com/stroparo/ds-stroparo"
zdraload
}