change README.md

README.md

-# NMaaS Janitor (back-end)
+<div align="center">
+  <a href="https://docs.nmaas.eu/">
+    <img src="docs/nmaas-logo-blue.png" alt="Logo" width="206" height="48">
+  </a>
 
-#### NMaaS Janitor is a microservice that interacts with GitLab and Kubernetes API to perform various low level operations on behalf of the NMaaS Platform
+<h3 align="center">NMaaS Janitor (back-end)</h3>
+
+<h4 align="center">Open-source multi-tenant platform for effortless, orchestrated deployment of software tools and applications on top of Kubernetes</h4>
+
+  <p align="center">
+    <br />
+    <a href="https://docs.nmaas.eu/">Explore documentation</a>
+    ·
+    <a href="https://github.com/nmaas-platform/nmaas-janitor/issues">Report Bug</a>
+    ·
+    <a href="https://github.com/nmaas-platform/nmaas-janitor/issues">Request Feature</a>
+  </p>
+</div>
+
+## NNMaaS Janitor
+
+[NMaaS Janitor](https://github.com/nmaas-platform/nmaas-janitor) is a microservice that interacts with GitLab and Kubernetes API to perform various low level operations on behalf of the NMaaS Platform
 
 ### Technologies
 
-* Go
-* Protobuf
-* gRPC
-* kubernetes/client-go
-* go-gitlab
+
+* [Go](https://go.dev/)
+* [Protobuf](https://protobuf.dev/)
+* [gRPC](https://grpc.io/)
+* [kubernetes/client-go](https://github.com/kubernetes/client-go)
+* [go-gitlab](https://pkg.go.dev/github.com/xanzy/go-gitlab)
 
 ### Features
 
@@ -20,5 +40,13 @@
 
 ### Deploying
 
-The provided Dockerfile comprises a two-stage Docker image build. 
-You don't have to compile protoc yourself, nor configure local golang environment. Just run `docker build`, and image will do all the work for you.
\ No newline at end of file
+The provided Dockerfile comprises a two-stage Docker image build.
+You don't have to compile protoc yourself, nor configure local golang environment. Just run `docker build`, and image will do all the work for you.
+
+### Get in Touch
+
+Interested users can use the following mailing lists to subscribe to news about NMaaS, get in touch with the NMaaS development team, or other NMaaS users:
+
+- [nmaas-announce@lists.geant.org](mailto:nmaas-announce@lists.geant.org) - public mailing list for announcements shared by the NMaaS team with the community ([subscribe here](https://lists.geant.org/sympa/info/nmaas-announce))
+- [nmaas@lists.geant.org](mailto:nmaas@lists.geant.org) - private mailing list for contacting the NMaaS core team members
+- [nmaas-users@lists.geant.org](mailto:nmaas-users@lists.geant.org) - public mailing lists for discussions related to NMaaS usage and development ([subscribe here](https://lists.geant.org/sympa/info/nmaas-users))