Update readme.md

readme.md

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 ## Setup
 
-### Step 1
+### Step 1:
 #### Deploy infrastructure with Terraform. The following should be created/deployed: S3 bucket with the name “ericincloud.com”, a DynamoDB table named “Visitor_Count” with Partition Key “Visitor” and Sort Key “TotalVisitors”, Lambda Functions “visitor_counter” and “retrieve_visitor_count” both with the IAM role “lambda_exec_role” granting full access to DynamoDB, and a CloudFront distribution.
 
 
-### Step  2 
+### Step  2: 
 #### Moving over to API Gateway, we can now create an API to connect to the Lambda function. Create a REST API then create a POST method. Select the Lambda function named “VisitorCounter” and the region us-west-1. To deploy, click on deploy to create a new stage. After deploying, you should be able to see a URL. Copy the URL and place it in the “Visitor Counter Write” script within the index.html file.
 
 
-### Step 3
+### Step 3:
 #### Next, head to Lambda and select the “RetrieveVisitorCount” function. Click on the “Configuration” tab > “Function URL” > “Create function URL”. Auth type: “NONE” > Additional settings > enable “Configure cross-origin resource sharing (CORS)” > Save. Copy the newly created Lambda function URL and paste it in the “Retrieve Visitor Count” script within the index.html file.