Instructions for files.defaultLanguage new option is confusing (fix #90187)

src/vs/workbench/contrib/files/browser/files.contribution.ts

@@ -314,7 +314,7 @@ configurationRegistry.registerConfiguration({
 		'files.hotExit': hotExitConfiguration,
 		'files.defaultLanguage': {
 			'type': 'string',
-			'description': nls.localize('defaultLanguage', "The default language mode that is assigned to new files. If configured to `${activeEditorLanguage}`, will use the language mode of the currently active text editor if any.")
+			'markdownDescription': nls.localize('defaultLanguage', "The default language mode that is assigned to new files. If configured to `${activeEditorLanguage}`, will use the language mode of the currently active text editor if any.")
 		},
 		'files.maxMemoryForLargeFilesMB': {
 			'type': 'number',

src/vs/workbench/services/keybinding/electron-browser/keybinding.contribution.ts

@@ -28,7 +28,7 @@ const keyboardConfiguration: IConfigurationNode = {
 				'type': 'string'
 			},
 			'default': [],
-			'description': nls.localize('touchbar.ignored', 'A set of identifiers for entries in the touchbar that should not show up (for example `workbench.action.navigateBack`.'),
+			'markdownDescription': nls.localize('touchbar.ignored', 'A set of identifiers for entries in the touchbar that should not show up (for example `workbench.action.navigateBack`.'),
 			'included': OS === OperatingSystem.Macintosh && parseFloat(release()) >= 16 // Minimum: macOS Sierra (10.12.x = darwin 16.x)
 		}
 	}