Update README.md

Author: Quentin Perez

README.md

@@ -1154,7 +1154,7 @@ $ scw inspect myserver | jq '.[0].public_ip.address'
 
 ### master (unreleased)
 
-* No entry
+* Add User-Agent with scw version ([#269](https://github.com/scaleway/scaleway-cli/issues/269))
 
 View full [commits list](https://github.com/scaleway/scaleway-cli/compare/v1.7.0...master)