Added Slack Badge

Signed-off-by: Ritvik Shukla <[email protected]>

README.md

@@ -4,7 +4,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/layer5io/meshsync)](https://goreportcard.com/report/github.com/layer5io/meshsync)
 [![Website](https://img.shields.io/website/https/layer5.io/meshery.svg)](https://layer5.io/meshery/)
 [![Twitter Follow](https://img.shields.io/twitter/follow/layer5.svg?label=Follow&style=social)](https://twitter.com/intent/follow?screen_name=mesheryio)
-[![Slack](http://slack.layer5.io/badge.svg)](http://slack.layer5.io)
+[![Slack](https://img.shields.io/badge/Slack-@layer5.svg?logo=slack)](http://slack.layer5.io)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3564/badge)](https://bestpractices.coreinfrastructure.org/projects/3564)
 
 # MeshSync