Update README with better docker information.

README.md

@@ -17,29 +17,28 @@ configurable media root for security.
 
 ## Quick start with Docker (recommended)
 
-```bash
-# 1. Build the image
-docker build -t videopress .
 
-# 2. Run — replace /your/video/path with the real path on your host
+Step. 1. You have two options
-docker run -d \
+  A. Build the image
+      `docker build -t videopress .`
+
+  B. Use the pre-built image
+      Already included in the `docker-compose.yml` file witht his project.
+
+Step 2. Run — replace `/your/video/path` with the real path on your host
+  A. Using `docker run`:
+
+```docker run -d \
   --name videopress \
   --restart unless-stopped \
   -p 8080:8080 \
   -v /your/video/path:/media \
   videopress
-
-# 3. Open http://localhost:8080
 ```
+  B. Using Docker Compose
+  `docker compose up -d`
 
-### With docker compose
+Step 3. Open http://localhost:8080
-
-```bash
-# Edit the volume path in docker-compose.yml  (or export the env var):
-export MEDIA_HOST_PATH=/your/video/path
-
-docker compose up -d
-```
 
 ---