8295529: Add link to JBS to README.md

Reviewed-by: jpai

README.md

@@ -7,5 +7,6 @@ or either of these files:
 - [doc/building.html](doc/building.html) (html version)
 - [doc/building.md](doc/building.md) (markdown version)
 
-See <https://openjdk.org/> for more information about
-the OpenJDK Community and the JDK.
+See <https://openjdk.org/> for more information about the OpenJDK
+Community and the JDK and see <https://bugs.openjdk.org> for JDK issue
+tracking.