Update README.md

Author: ronenhamias

README.md

@@ -1,3 +1,6 @@
+# We Hire at exberry.io
+https://exberry.io/career/
+
 # scalecube-services
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.scalecube/scalecube-services-api/badge.svg)](https://maven-badges.herokuapp.com/maven-central/io.scalecube/scalecube-services-api)
 [![SourceSpy Dashboard](https://sourcespy.com/shield.svg)](https://sourcespy.com/github/scalecubescalecubeservices/)