diff --git a/.env b/.env
new file mode 100644
index 0000000..bc78c0c
--- /dev/null
+++ b/.env
@@ -0,0 +1,8 @@
+# API Connection Settings
+
+# Add your API Key
+
+API_KEY=sk-
+
+API_URL=https://api.deepseek.com/beta
+API_MODEL=deepseek-reasoner
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index afe6adf..b169cf9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Environment files
 .env
+env/
 .apikey  # 同时忽略旧密钥文件
 
 # Python
diff --git a/README.md b/README.md
index 172d7e1..f4e8771 100644
--- a/README.md
+++ b/README.md
@@ -63,26 +63,37 @@ Due to degraded performance of official DeepSeek API - We recommend seeking alte
 
 **Prerequisites**: Python 3.11+ | Valid [Deepseek API Key](https://platform.deepseek.com/) or OpenAI SDK compatible API.
 
-```bash
-# Clone repository
-git clone https://github.com/Intelligent-Internet/CoT-Lab-Demo
-cd CoT-Lab
+### Clone repository
 
-# Install dependencies
-pip install -r requirements.txt
+    git clone https://github.com/Intelligent-Internet/CoT-Lab-Demo
+    cd CoT-Lab-Demo
 
-# Configure environment
-API_KEY=sk-****
-API_URL=https://api.deepseek.com/beta
-API_MODEL=deepseek-reasoner
+### Add to your .env file
+
+API_KEY, API_URL, API_MODEL
+
+### Start virtual environment
+
+    python3 -m venv env
+    source env/bin/activate
+
+For Windows
+
+    python3 -m venv env
+    .\env\Scripts\activate
+
+### Install dependencies
+
+    pip install -r requirements.txt
+
+### Launch application
+
+    python app.py
 
-# Launch application
-python app.py
-```
 
 
 ## 📄 License
 MIT License © 2024 [ii.inc]
 
 ## Contact
-yizhou@ii.inc (Dango233)
\ No newline at end of file
+yizhou@ii.inc (Dango233)
diff --git a/lang.py b/lang.py
index 8d256ed..85c0f54 100644
--- a/lang.py
+++ b/lang.py
@@ -1,7 +1,7 @@
 # lang.py
 LANGUAGE_CONFIG = {
     "en": {
-        "title": "## CoT-Lab: Human-AI Co-Thinking Laboratory \nFollow, learn, and iterate the thought within one turn. Consider clone the repo and run with your own API key for better experience.  \n GitHub: https://github.com/Intelligent-Internet/CoT-Lab-Demo",
+        "title": "## CoT-Lab: Human-AI Co-Thinking Laboratory \nFollow, learn, and iterate the thought within one turn. Consider cloning the repo and run with your own API key for a better experience.  \n GitHub: https://github.com/Intelligent-Internet/CoT-Lab-Demo",
         "prompt_label": "Task Description - Prompt",
         "prompt_placeholder": "Enter your prompt here...",
         "editor_label": "Thought Editor",