Update README.md

Author: lmangani

README.md

@@ -7,7 +7,14 @@
 This guide is based on [this article](https://medium.com/@skalyani103/python-on-aws-lambda-using-docker-images-5740664c54ca)
 
 
-## Upload Docker image on ECR and Lambda
+
+## Create an AWS Lambda Function for chDB
+
+To create an AWS Lambda function, log into your AWS console.
+
+➡ **Build & Push** the latest [chDB-lambda container](https://github.com/chdb-io/chdb-server/tree/main/lambda) image to your **ECR** storage.
+
+### Upload Docker image on ECR and Lambda
 Lambda function continers must be hosted on the AWS Elastic Container Registry.
 
 1. Export your AWS account id in the shell or better yet, add it your ~/.bashrc or ~/.bash_profile 
@@ -25,7 +32,42 @@ $ aws configure
 $ ./deploy.sh
 ```
 
-4. Create Lambda function and attach your ECR Image
 
-5. Test your Lambda function:
+
+➡ Search for **AWS Lambda** and select the service. Then, click **Create Function**.
+
+<img src="https://images.ctfassets.net/o7xu9whrs0u9/5XE0x5uBoOA4oJYZFwzNea/79493c8495c8d60c726cfeeae73a2b84/create_function.png" align="left">
+
+➡ Choose **Container Image** and use the **chDB ECR** instance URI you created
+
+<img src="https://user-images.githubusercontent.com/1423657/250210923-887894c3-35ef-4083-a4b8-29d247f1fc1c.png" align="left">
+
+
+
+➡ Click **Create Function** at the bottom right when you’re done.
+
+<br>
+
+### Validation
+
+Let's **test** our new **chDB Lambda** using a *simple query.*
+
+The Lamba expects JSON requests with a **query** key:
+
+```plaintext
+{
+   'query': 'SELECT version()',
+   'default_format': 'CSV'
+}
+```
+
+And the response would look like this (or any other format)
+
+```plaintext
+22.12.1.1
+```
+
+You can also use the Browser and the AWS Console to generate **test events**:
+
+<img src="https://user-images.githubusercontent.com/1423657/250201531-daa26b0b-68e2-4cec-b665-5505efe99b99.png" align="left">