Update the profile of Luca Milanesio

Change-Id: I312247324a21b30c4e5f253db14c0a5b0ddd4d7a
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 [LinkedIn](https://www.linkedin.com/in/lucamilanesio/)
 
-Luca is co-founder of GerritForge and has over 20 years of software development
+Luca is the co-founder of GerritForge and has over 25 years of software development
 and application lifecycle management experience.
-He is a Gerrit Contributor for over five years and is the maintainer
-of [GerritHub.io](https://gerrithub.io), the Open Service for Gerrit Code Review
+He is a Gerrit Contributor since 2012 and member of the Engineering Steering Committee in 2019.
+Luca maintains [GerritHub.io](https://gerrithub.io), the Open Service for Gerrit Code Review
 on top of GitHub repositories.
 
 ### Nicholas Mucci - Volvo Cars