docs(srv): update

Author: SamyOubouaziz

serverless/functions/how-to/create-a-function.mdx

@@ -32,28 +32,57 @@ This page shows you how to deploy a [function](/serverless/functions/concepts/#f
 ### Function configuration
 
 1. Select a runtime for your function.
-    - Select **Deploy "Hello world"** to deploy a basic function, **Inline code editor** to enter your own function code, or **Upload a ZIP** to import a [packaged function](/serverless/functions/how-to/package-function-dependencies-in-zip/).
-    - If you used the code editor, enter the [handler](/serverless/functions/reference-content/functions-handlers/) of your function.
-    - Enter a **name** or use the automatically generated one. The name can only contain lowercase alphanumeric characters and dashes.
-    - Enter an optional **description**.
-    - Select the **resources** to allocate to your function.
-    - Configure the **scaling** of your function.
+
+2. Select a function code option:
+
+    - **Inline code editor** to enter your own function code.
+    
+    - **Deploy "Hello world"** to deploy a basic function that will return "Hello world" when invoked. This option allows you to quickly test a deployment.
+
+    - **Upload a ZIP** to import a [packaged function](/serverless/functions/how-to/package-function-dependencies-in-zip/).
+
+3. If you used the code editor, enter the [handler](/serverless/functions/reference-content/functions-handlers/) of your function.
+
+4. Enter a **name** or use the automatically generated one. The name can only contain lowercase alphanumeric characters and dashes. You can click the icon at the right to generate a random name for your function.
+
+5. Enter an optional **description** for your function.
+
+### Function resources and scaling
+
+1. Select the **resources** to allocate to your function.
+
+2. Configure the **scaling** of your function.
     <Message type="tip">
       Define a minimum of **one instance** or more to avoid cold starts.
     </Message>
-5. Click **+ Advanced options** and complete the following steps:
-    - Define any **environment variables** you want to inject into your function. For each environment variable, click **+ Add variable** and enter the key/value pair.
-    - Optionally, set secret environment variables. **Secrets** are environment variables which are injected into your function and stored securely, but not displayed in the console after initial validation. Add a **key** and a **value**.
+
+### Function advanced options (optional)
+
+1. Click **+ Advanced options**.
+
+2. Define any **environment variables** you want to inject into your function. For each environment variable, click **+ Add variable** and enter the key/value pair.
+
+3. Define any **Secrets** you want to inject into your function. For each secret, click **+ Add secret** and enter the key/value pair. Secrets are environment variables which are injected into your function and stored securely, but not displayed in the console after initial validation.
         <Message type="note">
         Encode your environment variables and secrets to `base64` if they are too large, and contain carriage returns.
         </Message>
-    - Set the desired **privacy policy** for your function. This defines whether a function can be executed anonymously (**public**) or only via an authentication mechanism provided by the [Scaleway API](https://www.scaleway.com/en/developers/api/serverless-functions/#authentication) (**private**).
-    - Set the desired timeout for your function.
+
+4. Set the desired **privacy policy** for your function. This defines whether a function can be executed anonymously (**public**) or only via an authentication mechanism provided by the [Scaleway API](https://www.scaleway.com/en/developers/api/serverless-functions/#authentication) (**private**).
+
+5. Set the desired timeout for your function.
+
+6. Choose the desired **Sandbox** environment for your function.
     <Message type="note">
       [Triggers](/serverless/functions/concepts/#trigger) can no longer be added from this screen. For more information, refer to the [How to add a trigger to a function](/serverless/functions/how-to/add-trigger-to-a-function/) documentation.
     </Message>
-    - Verify the **estimated cost**.
-6. Click **Create function** to finish.
+
+### Function cost and validation
+
+1. Update the **Number of requests** and **Average request duration** fields to simulate the behavior of your function.
+
+2. Verify the **estimated cost**. Refer to the [Serverless Functions pricing](/faq/serverless-functions/#how-am-i-billed-for-serverless-functions) for more information on how billing works.
+
+3. Click **Create function** to finish.
 
 <Message type="tip">
   There are different ways to deploy Serverless Functions. Refer to our detailed [deployment information](/serverless/functions/reference-content/deploy-function/) for more advanced options to deploy your functions.