Update README.md

Author: georgeboot

README.md

@@ -41,7 +41,9 @@ yarn add laravel-echo-api-gateway
 npn install --save laravel-echo-api-gateway
 ```
 
-### When using Bref
+### Platform-specific instructions
+
+#### A. When using Bref
 
 Next, when using Bref, we have to add some elements to our `serverless.yml` file. If using Vapor, these resources have
 to be created by hand using the AWS CLI or console.
@@ -146,11 +148,11 @@ return $app->make(Handler::class);
 
 Now, deploy your app by running `serverless deploy` or similar. Write down the websocket url the output gives you.
 
-### When using Vapor
+#### B. When using Vapor
 
 When using Vapor, you will have to create these required resources by hand using the AWS CLI or Console:
 
-#### DynamoDB table for connections
+##### B1. DynamoDB table for connections
 
 Create a DynamoDB table for the connections. Use `connectionId` (string) as a HASH key, and `channel` (string) as a SORT
 key. Set the capacity setting to whatever you like (probably on-demand).
@@ -160,13 +162,13 @@ Create 2 indexes:
 1. Name: `lookup-by-connection`, key: `connectionId`, no sort key, projected: ALL
 2. Name: `lookup-by-channel`, key: `channel`, no sort key, projected: ALL
 
-#### API Gateway
+##### B2. API Gateway
 
 Create a new Websocket API. Enter a name and leave the route selection expression to what it is. Add a `$disconnect`
 and `$default`. Set both integrations to `Lambda` and select your CLI lambda from the list. Set the name of the stage to
 what you desire and create the API. Once created, write down the ID, as we'll need it later.
 
-#### IAM Permissions
+##### B3. IAM Permissions
 
 In IAM, go to roles and open `laravel-vapor-role`. Open the inline policy and edit it. On the JSON tab,
 add `"execute-api:*"` to the list of actions.
@@ -183,7 +185,7 @@ LARAVEL_ECHO_API_GATEWAY_API_ID=your-websocket-api-id
 LARAVEL_ECHO_API_GATEWAY_API_STAGE=your-api-stage-name
 ```
 
-### For both Bref and Vapor
+### Generate front-end code
 
 Add to your javascript file: