Update app.py

app.py

@@ -14,6 +14,7 @@ st.title("Welcome to RegBotBeta2.0")
 st.header("Powered by `LlamaIndex🦙`, `Langchain🦜🔗 ` and `OpenAI API`")
 
 #api_key = st.text_input("Enter your OpenAI API key here:", type="password")
+api_key = os.environ['OPENAI_API_KEY']
 
 if api_key:
     resp = validate(api_key)