fixed readme

README.md

@@ -27,11 +27,11 @@ The bot is just a **Lavalink client** — actual audio is streamed by a separate
 comes from the `youtube-plugin`, configured in `lavalink/application.yml`.
 
 - Bot: Java + Gradle (JDA 6, `lavalink-client`)
-- Music server: Lavalink v4 via `docker-compose.yml`
+- Music server: Lavalink v4 via `docker-compose.yaml`
 
 ## Requirements
 
-- A recent JDK (Java 17+; use the latest LTS if the build complains)
+- A JDK (builds on Java 17+; CI and the Docker image use Java 25)
 - Docker + Docker Compose (to run the Lavalink server)
 - A Discord bot token
 
@@ -58,15 +58,20 @@ cp .env.example .env
 So load it into your shell first.
 
 ```bash
-# 1. Start the Lavalink server (first run downloads the YouTube plugin; wait for "ready")
-docker compose up -d
-docker compose logs -f            # wait for "Lavalink is ready to accept connections", then Ctrl+C
+# 1. Start ONLY the Lavalink server — not the bot container — so it doesn't clash
+#    with the bot you're running from source. (First run downloads the YouTube
+#    plugin; wait for "ready".)
+docker compose up -d lavalink
+docker compose logs -f lavalink   # wait for "Lavalink is ready to accept connections", then Ctrl+C
 
 # 2. Load your .env and run the bot
 set -a; source .env; set +a
 ./gradlew run
 ```
 
+> `docker compose up -d` (no service name) would start the **bot container too**,
+> giving you two bots. For source development, always pass `lavalink` explicitly.
+
 When it connects you'll see `Bot connected and ready as ...` in the console. Then join a
 voice channel in your server and try `/play <song or url>`.
 
@@ -77,8 +82,8 @@ voice channel in your server and try `/play <song or url>`.
 - [ ] Invite the bot to your server with the `bot` and `applications.commands` scopes
       (and the **Connect** + **Speak** voice permissions)
 - [ ] Enable Developer Mode in Discord and copy your server's **Guild ID**
-- [ ] `cp .env.example .env` and fill in `BOT_TOKEN` (and `GUILD_ID`)
-- [ ] Start Lavalink: `docker compose up -d` and wait until the logs say it's ready
+- [ ] `cp .env.example .env` and fill in `BOT_TOKEN`, `LAVALINK_PASSWORD` (and `GUILD_ID`)
+- [ ] Start Lavalink only: `docker compose up -d lavalink` and wait until the logs say it's ready
 - [ ] Load env vars: `set -a; source .env; set +a`
 - [ ] Run the bot: `./gradlew run`
 - [ ] In Discord, run `/hello` to confirm it responds, then `/play` from a voice channel