about: fix spelling typo error

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

Author: shwstppr

source/releasenotes/about.rst

@@ -23,7 +23,7 @@ improvements since the 4.17.0.0 release. Highlights include:
 • Support for Ubuntu 22.04 LTS as management server and KVM host
 • Improvements for System VM storage migration on KVM
 • CKS cluster upgrade enhancements
-• Several network and VPC related fixes especially related IPv6 and perimissions
+• Several network and VPC related fixes especially related IPv6 and permissions
 • KVM libvirt Java library upgrade
 • KVM Shared Mount Point fix
 • VMware local storage volume migration improvements