Fix headings

Author: sethmanheim

AKS-Arc/aks-edge-whats-new.md

@@ -14,11 +14,9 @@ ms.lastreviewed: 03/12/2025
 
 AKS Edge Essentials is a lightweight on-premises Kubernetes implementation of Azure Kubernetes Service (AKS) that automates running containerized applications at scale. This article describes the latest features, enhancements, and updates in AKS Edge Essentials.
 
-## Features and improvements
+This article lists the new features and improvements in each release of AKS Edge Essentials.
 
-This section lists the new features and improvements in each release of AKS Edge Essentials.
-
-### Release 1.10.868.0 (March 2025)
+## Release 1.10.868.0 (March 2025)
 
 The following features and improvements were added in this release:
 
@@ -27,7 +25,7 @@ The following features and improvements were added in this release:
 - **AKS Edge Essentials now connects to Azure Arc during deployment to decrease the number of required deployment steps.** Arc parameters are now required in the **aks-edge** configuration file during deployment. Starting with the next release, AKS Edge Essentials deployment will be blocked if Arc parameters are missing or invalid.
 - **The Calico CNI + K3s preview has been discontinued**. You must now use Flannel with K3s and Calico with K8s. For more information, see [Single machine deployment](aks-edge-howto-single-node-deployment.md#step-1-single-machine-configuration-parameters).
 
-#### Supported versions for 1.10.868.0
+### Supported versions for 1.10.868.0
 
 The component versions supported in the 1.10.868.0 release are as follows:
 
@@ -37,11 +35,11 @@ The component versions supported in the 1.10.868.0 release are as follows:
 - K3s distribution: 1.29.9 (upgrade only), 1.30.6
 - JSON version schema: 1.15
 
-### Release 1.9.262.0 (November 2024)
+## Release 1.9.262.0 (November 2024)
 
 - Updated the Mariner and Windows versions to include CVE fixes between this release and the previous release.
 
-#### Supported versions for 1.9.262.0
+### Supported versions for 1.9.262.0
 
 The component versions supported in the 1.9.262.0 release are as follows:
 
@@ -51,14 +49,14 @@ The component versions supported in the 1.9.262.0 release are as follows:
 - K3s distribution: 1.28.5, 1.29.6
 - JSON version schema: 1.14
 
-### Release 1.8.202.0 (September 2024)
+## Release 1.8.202.0 (September 2024)
 
 - Upgrade from K3s 1.28.3 (July release) to 1.28.5 (September release), and on K8s from 1.28.3 (July release) to 1.28.9 (September release).
 - Upgrade from K3s 1.27.6 (July release) to 1.28.5 (September release), and K3s 1.28.3 (July release) to 1.29.6 (September release)
 - Upgrade from K8s from 1.27.6 (July release) to 1.28.9 (September release), and on K8s from 1.28.3 (July release) to 1.29.4 (September release).
 - There is a new precheck during install to validate **fdatasync** latency. If disk latency is higher than 10ms, the install process returns a non-blocking warning message.
 
-#### Supported versions for 1.8.202.0
+### Supported versions for 1.8.202.0
 
 The component versions supported in the 1.8.202.0 release are as follows: