Update due to release of JDK 16

Spring-Framework-Versions.md

@@ -18,7 +18,7 @@ At this point, we recommend upgrading to the latest Spring Framework 5.3.x relea
 - Spring Framework 5.0.x: JDK 8-10
 - Spring Framework 4.3.x: JDK 6-8
 
-We fully test and support Spring on Long-Term Support (LTS) releases of the JDK, i.e. currently JDK 8 and 11 (both with a lifetime until 2023) and expecting JDK 17 (to be released in late 2021). Additionally, there is support for intermediate releases such as JDK 9/10/12/13/14/15 and the upcoming JDK 16 on a best-effort basis, meaning that we accept bug reports and will try to address them as far as technically possible but won't provide any service level guarantees.
+We fully test and support Spring on Long-Term Support (LTS) releases of the JDK, i.e. currently JDK 8 and 11 (both with a lifetime until 2023) and expecting JDK 17 (to be released in late 2021). Additionally, there is support for intermediate releases such as JDK 9/10/12/13/14/15/16 on a best-effort basis, meaning that we accept bug reports and will try to address them as far as technically possible but won't provide any service level guarantees.
 
 _Please upgrade to Spring Framework 5.1+ (and the corresponding Spring Boot 2.1+) for JDK 11+ support, as the common Long-Term Support migration path from JDK 8. No earlier Spring versions are officially supported on JDK 11, in particular not with JDK 11 bytecode level. Note that third-party components might not fully support JDK 11 yet, so you are likely to be limited in your full-stack options._