Updated readme after testing on ubuntu
Updated readme after testing on ubuntu

Danack/phpiredis,jymsy/phpiredis,RustJason/phpiredis,nrk/phpiredis,nrk/phpiredis,nrk/phpiredis,RustJason/phpiredis,Danack/phpiredis,RustJason/phpiredis,Danack/phpiredis,jymsy/phpiredis