src/vs/workbench/contrib/extensions/browser/extensionEditor.ts/ExtensionEditor/openChangelog
class ExtensionEditor:	private openChangelog(template: IExtensionEditorTemplate, token: CancellationToken): Promise<IActiveElement | null> {
		return this.openMarkdown(this.extensionChangelog!.get(), localize('noChangelog', "No Changelog available."), template.content, WebviewIndex.Changelog, token);
	}