[ADD] addons table in README.md
[ADD] addons table in README.md

Endika/connector-magento,brain-tec/connector-magento,acsone/connector-magento,fevxie/connector-magento,brain-tec/connector-magento,acsone/connector-magento,fevxie/connector-magento,Antiun/connector-magento,Antiun/connector-magento,Endika/connector-magento