add website link to README

Author: walpurr

README.md

@@ -5,3 +5,5 @@
 [![Code Smells](https://sonarcloud.io/api/project_badges/measure?project=prvmjsky_java-project-72&metric=code_smells)](https://sonarcloud.io/summary/new_code?id=prvmjsky_java-project-72)
 [![Duplicated Lines (%)](https://sonarcloud.io/api/project_badges/measure?project=prvmjsky_java-project-72&metric=duplicated_lines_density)](https://sonarcloud.io/summary/new_code?id=prvmjsky_java-project-72)
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=prvmjsky_java-project-72&metric=coverage)](https://sonarcloud.io/summary/new_code?id=prvmjsky_java-project-72)
+
+**Open in browser:** https://java-project-72-bmut.onrender.com