fix formatting on the 9.7 release notes (#6883)

* fix formatting on the 9.7 release notes

* Adding the Release Notes

Co-authored-by: Christophe Levis <christophe.levis@sonarsource.com>

server/sonar-docs/src/pages/setup/upgrade-notes.md

@@ -4,8 +4,10 @@ url: /setup/upgrade-notes/
 ---
 
 ## Release 9.7 Upgrade notes
-**Change in the database connection pool**
-The database connection pool has been replaced for better performance. The `sonar.jdbc.maxIdle`, `sonar.jdbc.minEvictableIdleTimeMillis` and `sonar.jdbc.timeBetweenEvictionRunsMillis` properties no longer have any effect and should be removed from the configuration. Also, the JMX information that is provided to monitor the connection pool has evolved. See the [Monitoring documentation](/instance-administration/monitoring/) for more information. ([SONAR-17200](https://sonarsource.atlassian.net/browse/SONAR-17200))
+**Change in the database connection pool**  
+The database connection pool has been replaced for better performance. The `sonar.jdbc.maxIdle`, `sonar.jdbc.minEvictableIdleTimeMillis` and `sonar.jdbc.timeBetweenEvictionRunsMillis` properties no longer have any effect and should be removed from the configuration. Also, the JMX information that is provided to monitor the connection pool has evolved. See the [Monitoring documentation](/instance-administration/monitoring/) for more information. ([SONAR-17200](https://sonarsource.atlassian.net/browse/SONAR-17200)).
+
+[Full release notes](https://sonarsource.atlassian.net/issues/?jql=project%20%3D%2010139%20AND%20fixVersion%20%3D%2013800)
 
 ## Release 9.6 Upgrade notes
 **Microsoft SQL Server changes in configuration and Integrated Authentication**