From 535b068670848f6a3193528582484826a858d680 Mon Sep 17 00:00:00 2001
From: Damien Arrachequesne <damien.arrachequesne@gmail.com>
Date: Tue, 14 Feb 2023 15:25:57 +0100
Subject: [PATCH] docs: add upgrade event in the documentation

Reference: https://github.com/socketio/engine.io/blob/898bd1c9df379f4749989afe82c311b7ed9c6174/lib/socket.ts#L285

Related: https://github.com/socketio/socket.io-website/issues/369
---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index da038e19..f33f788f 100644
--- a/README.md
+++ b/README.md
@@ -338,6 +338,14 @@ A representation of a client. _Inherits from EventEmitter_.
     - Fired when an error occurs.
     - **Arguments**
       - `Error`: error object
+- `upgrading`
+    - Fired when the client starts the upgrade to a better transport like WebSocket.
+    - **Arguments**
+        - `Object`: the transport
+- `upgrade`
+    - Fired when the client completes the upgrade to a better transport like WebSocket.
+    - **Arguments**
+        - `Object`: the transport
 - `flush`
     - Called when the write buffer is being flushed.
     - **Arguments**