Minor update to release notes for v1.12 (microsoft#5761)

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Author: florelis

doc/ReleaseNotes.md

@@ -1,7 +1,7 @@
 ## New in v1.12
 * MCP server available; run `winget mcp` for assistance on configuring your client.
-* App Installer now uses WinUI 3. The package dependency on WinUI 2 has been replaced by a dependency on the Windows App Runtime 1.7.
-* Manifest schema and validation updated to v1.12. This version update adds "Font" as an InstallerType and NestedInstallerType.
+* App Installer now uses WinUI 3. The package dependency on WinUI 2 has been replaced by a dependency on the Windows App Runtime 1.8.
+* Manifest schema and validation updated to v1.12. This version update adds `Font` as an `InstallerType` and `NestedInstallerType`.
 
 ## Bug Fixes
 * Manifest validation no longer fails using `UTF-8 BOM` encoding when the schema header is on the first line