message: Update output snippet to use html tag [skip ci]
diff: @@ -51,10 +51,11 @@ Converts to:
  ```javascript
  import { PolymerElement } from '../../@polymer/polymer/polymer-element.js';
  +import { html } from '../../@polymer/polymer/lib/utils/html-tag.js';
  export const MyElement = class extends PolymerElement {
  static get template() {
  - return `
  + return html`
  <h2>Hello Modules!</h2>
  `;
  }
  