extensions/markdown-language-features/src/extension.browser.ts/startServer
function startServer(context: vscode.ExtensionContext, parser: IMdParser): Promise<MdLanguageClient> {
	const serverMain = vscode.Uri.joinPath(context.extensionUri, 'server/dist/browser/main.js');
	const worker = new Worker(serverMain.toString());

	return startClient((id: string, name: string, clientOptions: LanguageClientOptions) => {
		return new LanguageClient(id, name, clientOptions, worker);
	}, parser);
}