docs: Update README with Docker usage instructions and dependency che…

…ck output

README.md

@@ -27,7 +27,33 @@
 To use the Docker image, you can pull it from the GitHub Container Registry and run it as follows:
 
 ```bash
-    docker run --rm -it ghcr.io/ins-amu/vbi:main python3 -c 'from vbi.utils import test_imports; test_imports()'
+    docker build -t vbi-project .         # build
+    docker run --gpus all -it vbi-project # use with gpu
+
+    # Output something like this:
+
+                Dependency Check              
+
+    Package      Version       Status        
+  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 
+    vbi          v0.1.3        ✅ Available  
+    numpy        1.24.4        ✅ Available  
+    scipy        1.10.1        ✅ Available  
+    matplotlib   3.7.5         ✅ Available  
+    sbi          0.22.0        ✅ Available  
+    torch        2.4.1+cu121   ✅ Available  
+    cupy         12.3.0        ✅ Available  
+
+    Torch GPU available: True
+    Torch device count: 1
+    Torch CUDA version: 12.1
+    CuPy GPU available: True
+    CuPy device count: 1
+    CUDA Version: 11.8
+    Device Name: NVIDIA RTX A5000
+    Total Memory: 23.68 GB
+    Compute Capability: 8.6
+
 ```