Add compatibility guarantee to README
Add compatibility guarantee to README

cep21/sarama,LastManStanding/sarama,rafrombrc/sarama,Shopify/sarama,Shopify/sarama,jimmykuo/sarama,pronix/sarama,kmiku7/sarama,VividCortex/sarama,raisemarketplace/sarama,scalingdata/sarama,aybabtme/sarama,yangfan876/sarama,DataDog/sarama,Neuw84/sarama,uovobw/sarama,kmiku7/sarama,kraveio/sarama,jepst/sarama,jimmykuo/sarama,yangfan876/sarama,mailgun/sarama,HelixEducation/sarama,jepst/sarama,LastManStanding/sarama,DataDog/sarama,vrischmann/sarama,crast/sarama,crast/sarama,aybabtme/sarama,remerge/sarama,cep21/sarama,HelixEducation/sarama,raisemarketplace/sarama,Neuw84/sarama,remerge/sarama,VividCortex/sarama,vrischmann/sarama,scalingdata/sarama,winlinvip/sarama,kraveio/sarama,pronix/sarama,mailgun/sarama,uovobw/sarama,winlinvip/sarama,rafrombrc/sarama