better links to events docs (#67)

motivation: link to developer guide instead of golang impl

changes: add/change event doc links to https://docs.aws.amazon.com/lambda/latest/dg/lambda-services.html

Author: tomerd

Sources/AWSLambdaEvents/APIGateway.swift

@@ -14,6 +14,7 @@
 
 import class Foundation.JSONEncoder
 
+// https://docs.aws.amazon.com/lambda/latest/dg/services-apigateway.html
 // https://docs.aws.amazon.com/apigateway/latest/developerguide/set-up-lambda-proxy-integrations.html
 
 public enum APIGateway {

Sources/AWSLambdaEvents/Cloudwatch.swift

@@ -31,6 +31,7 @@ public enum Cloudwatch {
     /// CloudWatch.Event is the outer structure of an event sent via CloudWatch Events.
     ///
     /// **NOTE**: For examples of events that come via CloudWatch Events, see
+    /// https://docs.aws.amazon.com/lambda/latest/dg/services-cloudwatchevents.html
     /// https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/EventTypes.html
     /// https://docs.aws.amazon.com/eventbridge/latest/userguide/event-types.html
     public struct Event<Detail: CloudwatchDetail>: Decodable {

Sources/AWSLambdaEvents/S3.swift

@@ -14,7 +14,8 @@
 
 import struct Foundation.Date
 
-// https://github.com/aws/aws-lambda-go/blob/master/events/s3.go
+// https://docs.aws.amazon.com/lambda/latest/dg/with-s3.html
+
 public enum S3 {
     public struct Event: Decodable {
         public struct Record: Decodable {

Sources/AWSLambdaEvents/SNS.swift

@@ -14,7 +14,8 @@
 
 import struct Foundation.Date
 
-/// https://github.com/aws/aws-lambda-go/blob/master/events/sns.go
+// https://docs.aws.amazon.com/lambda/latest/dg/with-sns.html
+
 public enum SNS {
     public struct Event: Decodable {
         public struct Record: Decodable {

Sources/AWSLambdaEvents/SQS.swift

@@ -12,7 +12,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-/// https://github.com/aws/aws-lambda-go/blob/master/events/sqs.go
+// https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html
+
 public enum SQS {
     public struct Event: Decodable {
         public let records: [Message]