Update README.md (#1730)

updating link to a roadmap

Author: spron-in

README.md

@@ -85,7 +85,7 @@ You can get early access to new product features, invite-only ”ask me anything
 
 # Roadmap
 
-We have an experimental public roadmap which can be found [here](https://github.com/percona/roadmap/projects/1). Please feel free to contribute and propose new features by following the roadmap [guidelines](https://github.com/percona/roadmap).
+We have a public roadmap which can be found [here](https://github.com/orgs/percona/projects/10). Please feel free to contribute and propose new features by following the roadmap [guidelines](https://github.com/percona/roadmap).
 
 # Submitting Bug Reports