update(readme): add browser support illustration
update(readme): add browser support illustration

* also added top-10, most-active GitHub Repos Chart
david-gang/material,oostmeijer/material,graingert/material,graingert/material,DevVersion/material,bluebirdtech/material,pwistbac/material,ilovett/material,DevVersion/material,pwistbac/material,Splaktar/material,ilovett/material,hayloft/material,miguelcobain/material,ServiceManagementGroup/material,Splaktar/material,clshortfuse/material,vertazzar/material,graingert/material,ServiceManagementGroup/material,clshortfuse/material,imjoeco/material,crisbeto/material,hayloft/material,ServiceManagementGroup/material,oostmeijer/material,ilovett/material,Splaktar/material,daniel-nagy/material,crisbeto/material,SamDLT/material,profoundry-us/material,pwistbac/material,marekmicek/material,Frank3K/material,ServiceManagementGroup/material,daniel-nagy/material,graingert/material,Frank3K/material,david-gang/material,vertazzar/material,angular/material,hayloft/material,Splaktar/material,miguelcobain/material,crisbeto/material,daniel-nagy/material,pwistbac/material,DevVersion/material,imjoeco/material,angular/material,imjoeco/material,clshortfuse/material,clshortfuse/material,david-gang/material,marekmicek/material,vertazzar/material,bluebirdtech/material,profoundry-us/material,david-gang/material,oostmeijer/material,SamDLT/material,crisbeto/material,DevVersion/material,imjoeco/material,Frank3K/material,bluebirdtech/material,profoundry-us/material,vertazzar/material,daniel-nagy/material,profoundry-us/material,angular/material,SamDLT/material,hayloft/material,miguelcobain/material,angular/material,marekmicek/material,marekmicek/material,Frank3K/material,SamDLT/material,miguelcobain/material,bluebirdtech/material,ilovett/material,oostmeijer/material