add clarification to view id description

src/vs/workbench/api/browser/viewsExtensionPoint.ts

@@ -82,7 +82,7 @@ const viewDescriptor: IJSONSchema = {
 	type: 'object',
 	properties: {
 		id: {
-			description: localize('vscode.extension.contributes.view.id', 'Identifier of the view. Use this to register a data provider through `vscode.window.registerTreeDataProviderForView` API. Also to trigger activating your extension by registering `onView:${id}` event to `activationEvents`.'),
+			description: localize('vscode.extension.contributes.view.id', 'Identifier of the view. This should be unique across all views. It is recommended to include your extension id as part of the view id. Use this to register a data provider through `vscode.window.registerTreeDataProviderForView` API. Also to trigger activating your extension by registering `onView:${id}` event to `activationEvents`.'),
 			type: 'string'
 		},
 		name: {
@@ -100,7 +100,7 @@ const remoteViewDescriptor: IJSONSchema = {
 	type: 'object',
 	properties: {
 		id: {
-			description: localize('vscode.extension.contributes.view.id', 'Identifier of the view. Use this to register a data provider through `vscode.window.registerTreeDataProviderForView` API. Also to trigger activating your extension by registering `onView:${id}` event to `activationEvents`.'),
+			description: localize('vscode.extension.contributes.view.id', 'Identifier of the view. This should be unique across all views. It is recommended to include your extension id as part of the view id. Use this to register a data provider through `vscode.window.registerTreeDataProviderForView` API. Also to trigger activating your extension by registering `onView:${id}` event to `activationEvents`.'),
 			type: 'string'
 		},
 		name: {