Correct ELK version in releasenotes
RedELK release notes
### version 2.0.0 BETA5
-* log4shell fix: bumped ELK stack to 7.16.2
+* log4shell fix: bumped ELK stack to 7.16.3
* Further Docker and memory tunings
* Moved Greynoise support to community API and allowing a custom API key in config file
* Fixed bug on updated API for VirusTotal and IBM X-Force alarms
