Merge pull request #99 from Tail-wind/patch-1

Update Lambda@Edge description to indicate Node runtime restriction

Author: mwunderl

doc_source/lambda-edge.md

@@ -1,6 +1,6 @@
 # Lambda@Edge<a name="lambda-edge"></a>
 
-Lambda@Edge lets you run Lambda functions to customize content that CloudFront delivers, executing the functions in AWS locations closer to the viewer\. The functions run in response to CloudFront events, without provisioning or managing servers\. You can use Lambda functions to change CloudFront requests and responses at the following points:
+Lambda@Edge lets you run Node.js Lambda functions to customize content that CloudFront delivers, executing the functions in AWS locations closer to the viewer\. The functions run in response to CloudFront events, without provisioning or managing servers\. You can use Lambda functions to change CloudFront requests and responses at the following points:
 + After CloudFront receives a request from a viewer \(viewer request\)
 + Before CloudFront forwards the request to the origin \(origin request\)
 + After CloudFront receives the response from the origin \(origin response\)
@@ -17,4 +17,4 @@ With Lambda@Edge, you can build a variety of solutions, for example:
 + Add, delete, and modify headers, and rewrite the URL path to direct users to different objects in the cache\.
 + Generate new HTTP responses to do things like redirect unauthenticated users to login pages, or create and deliver static webpages right from the edge\. For more information, see [Using Lambda Functions to Generate HTTP Responses to Viewer and Origin Requests](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/http-response-generation.html) in the *Amazon CloudFront Developer Guide*\.
 
-For more information about using Lambda@Edge, see [Using CloudFront with Lambda@Edge](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/lambda-at-the-edge.html)\. 
+For more information about using Lambda@Edge, see [Using CloudFront with Lambda@Edge](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/lambda-at-the-edge.html)\.