update README.md.

Signed-off-by: 葛峻恺 <202115006@mail.sdu.edu.cn>

README.md

@@ -66,3 +66,25 @@ GPR-SIDL-inv/
 └── README.md                      # This file
 
 
+### 🛠️ Installation
+
+### 1. Clone the repository
+
+git clone https://github.com/yourusername/GPR-FWI-DeepLearning.git
+
+cd GPR-FWI-DeepLearning
+
+### 2. Install gprMax (optional but recommended)
+
+https://www.gprmax.com/ 
+
+### 3. Install dependencies
+
+pip install -r requirements.txt
+
+### 📊 Usage
+
+### ✅ Training
+
+
+