message: change idp do solidcommunity.net in header example
diff: <body>
  <h2 id="header"><a href="#header">Header</a>
  - <button class="loginButton" onclick="login('https://solid.community')">Login</button>
  + <button class="loginButton" onclick="login('https://solidcommunity.net')">Login</button>
  <script>
  async function login(idp) {
  const session = await solid.auth.currentSession();
  