Include PTP in the release notes

Add PTP to the least of features and to the tech-preview list.

Signed-off-by: Marco Chiappero <[email protected]>

asciidoc/edge-book/releasenotes.adoc

@@ -41,6 +41,7 @@ Summary: SUSE Edge 3.2.0 is the first release in the SUSE Edge 3.2 release strea
 * Updated Rancher Turtles, Cluster API and Metal3/Ironic versions
 * A container image is now provided which enables building updated SUSE Linux Micro images. See <<guides-kiwi-builder-images>> for more details.
 * Deployment of dual-stack downstream clusters is now possible via the directed network provisioning flow as a technology preview.
+* Configuration of Precision Time Protocol (PTP) is now possible as a technology preview. See <<tech-previews>> for more details.
 
 == Bug & Security Fixes
 
@@ -153,13 +154,15 @@ registry.suse.com/edge/3.2/release-manifest:3.2.0
 | Kiwi Builder | 10.1.16.0 | N/A | registry.suse.com/edge/3.2/kiwi-builder:10.1.16.0
 |======
 
+[#tech-previews]
 = Technology previews
 
 Unless otherwise stated, these apply to the 3.2.0 release and all subsequent z-stream versions.
 
 * Akri is a Technology Preview offering and is not subject to the standard scope of support.
 * Edge Image Builder on aarch64 is a Technology Preview offering and is not subject to the standard scope of support.
 * IPv6 and dual-stack downstream deployments are a Technology Preview offering and are not subject to the standard scope of support.
+* Precision Time Protocol (PTP) on downstream deployments is a Technology Preview offering and is not subject to standard scope of support.
 
 = Components Verification