Update README.rst

Add OSSRank

README.rst

@@ -3,7 +3,7 @@ Glances - An eye on your system
 ===============================
 
 |  |pypi| |test| |contributors| |quality|
-|  |starts| |docker| |pypistat|
+|  |starts| |docker| |pypistat| |ossrank|
 |  |sponsors| |twitter|
 
 .. |pypi| image:: https://img.shields.io/pypi/v/glances.svg
@@ -21,6 +21,10 @@ Glances - An eye on your system
     :target: https://pepy.tech/project/glances
     :alt: Pypi downloads
 
+.. |ossrank| image:: https://shields.io/endpoint?url=https://ossrank.com/shield/3689
+    :target: https://ossrank.com/p/3689
+    :alt: OSSRank
+
 .. |test| image:: https://github.com/nicolargo/glances/actions/workflows/ci.yml/badge.svg?branch=develop
     :target: https://github.com/nicolargo/glances/actions
     :alt: Linux tests (GitHub Actions)