message: docs: Update example titles
diff: @@ -52,7 +52,7 @@ const client = new CoinbasePro(auth);
  ## REST Example
  -**Query accounts**
  +**List accounts**
  ```javascript
  const tradingAccounts = await client.rest.account.listAccounts();
  @@ -62,7 +62,7 @@ console.log(message);
  ## WebSocket Example
  -**Event registration**
  +**Subscribe to tickers**
  ```javascript
  client.on(WebSocketClient.TOPIC.ON_MESSAGE, event => {
  