Link siddhi-io-cdc from extensions.md page
Link siddhi-io-cdc from extensions.md page

wso2/siddhi,minudika/siddhi,dilini-muthumala/siddhi,suhothayan/siddhi,gokul/siddhi,suhothayan/siddhi,wso2/siddhi,mohanvive/siddhi,grainier/siddhi,tishan89/siddhi,ramindu90/siddhi,mohanvive/siddhi,tishan89/siddhi,minudika/siddhi,ramindu90/siddhi,grainier/siddhi,dilini-muthumala/siddhi,gokul/siddhi