Update docs

README.md

@@ -1,10 +1,31 @@
 # OTP with meme image
 
-Leisure project. A REST API that sends a one-time authentication code (a.k.a OTP) but the code is in the text of a meme image.
+Leisure project. A REST API that sends a one-time authentication code (a.k.a OTP) to email, but the code is in the text of a meme image.
 
-## Summary
+## Usage
 
-If it works perfectly the result will be like this:
+Setup:
+- Create a new `.env` file
+- Add your `EMAIL_SENDER` and `EMAIL_PASSWORD` in your `.env` file
+- Create or use an API test app like Postman
+
+Usage:
+- Run `main.py`
+- Send a request to http://localhost:5000/send-otp with your `email`  query as email recipient. E.g: http://localhost:5000/send-top?email=your@email.com.
+- If successful then a response appears like this:
+    ```json
+    {
+        "email": {
+            "body": "Here's your email confirmation",
+            "receiver": "your.receiver@email.com",
+            "sender": "your.sender@email.com",
+            "subject": "confirm your account"
+        },
+        "message": "Success sending email",
+        "status": 200
+    }
+    ```
+- Now if you look at the recipient's email, it will be the image that was sent:
 
     ![Example Outpus](./docs/example.png)
 

main.py

@@ -47,10 +47,10 @@ def hello():
 @app.route('/send-otp', methods=['POST'])
 def send_email():
     # Create an .env file at the root of this project
-    # There are two values required here, EMAIL_SENDER_2 and EMAIL_PASSWORD_2
+    # There are two values required here, EMAIL_SENDER and EMAIL_PASSWORD
     # Or you can change the value here and in .env file
-    mail_sender = os.environ.get("EMAIL_SENDER_2")
-    mail_password = os.environ.get("EMAIL_PASSWORD_2")
+    mail_sender = os.environ.get("EMAIL_SENDER")
+    mail_password = os.environ.get("EMAIL_PASSWORD")
     mail_receiver = request.args.get('email')
 
     if mail_receiver is None: