Update endorsed-distros.md

Author: SyntaxC4

articles/virtual-machines/linux/endorsed-distros.md

@@ -18,7 +18,7 @@ ms.date: 05/01/2019
 ms.author: szark
 
 ---
-# Endorsed Linux Distributions on Azure
+# Endorsed Linux distributions on Azure
 Partners provide Linux images in the Azure Marketplace. We are working with various Linux communities to add even more flavors to the Endorsed Distribution list. In the meantime, for distributions that are not available from the Marketplace, you can always bring your own Linux by following the guidelines at [Create and upload a virtual hard disk that contains the Linux operating system](https://docs.microsoft.com/azure/virtual-machines/linux/create-upload-generic).
 
 ## Supported distributions and versions
@@ -43,13 +43,13 @@ The Azure Linux Agent is already pre-installed on the Azure Marketplace images a
   - **<sup>1</sup>** Information about extended support for Ubuntu 12.04 and 14.04 can be found here: [Ubuntu Extended Security Maintenance](https://www.ubuntu.com/esm).
 
 
-## Image Update Cadence
+## Image update cadence
 Azure requires that the publishers of the endorsed Linux distributions regularly update their images in the Azure Marketplace with the latest patches and security fixes, at a quarterly or faster cadence. Updated images in the Azure Marketplace are available automatically to customers as new versions of an image SKU. More information about how to find Linux images: [Find Linux VM images in the Azure Marketplace](https://docs.microsoft.com/azure/virtual-machines/linux/cli-ps-findimage).
 
-### Additional Links
+### Additional links
  - [SUSE Public Cloud Image Lifecycle](https://www.suse.com/c/suse-public-cloud-image-life-cycle/)
 
-## Azure-Tuned Kernels
+## Azure-tuned kernels
 
 Azure works closely with various endorsed Linux distributions to optimize the images that they published to the Azure Marketplace. One aspect of this collaboration is the development of "tuned" Linux kernels that are optimized for the Azure platform and delivered as fully supported components of the Linux distribution. The Azure-Tuned kernels incorporate new features and performance improvements, and at a faster (typically quarterly) cadence compared to the default or generic kernels that are available from the distribution.