revert: remove unnecessary readme disclaimer

This reverts commit 98d8123.

README.md

@@ -3,7 +3,6 @@
 ## Table of Contents
 
 - [Introduction](#introduction)
-- [Important Notice](#important-notice)
 - [Examples](#examples)
 - [Installation](#installation)
 - [Features](#features)
@@ -41,9 +40,6 @@
 - Support running the application as [a daemon](#daemon)
 - Offer a wide range of [CLI commands](#cli-commands)
 
-## Important Notice
-spotify-player throws error "Login failed with reason: Bad credentials" when authenticating from 7/29/2024 because Spotify removed username & password authentication from API through Mercury/Hermes. Please use [librespot-auth repository](https://github.com/dspearson/librespot-auth). For more details, see [#520](https://github.com/aome510/spotify-player/issues/520)
-
 ## Examples
 
 A demo of `spotify_player` `v0.5.0-pre-release` on [youtube](https://www.youtube.com/watch/Jbfe9GLNWbA) or on [asciicast](https://asciinema.org/a/446913):