Add CloudWatch README (#242)

* Add CloudWatch README

* Update README_CloudWatch_Events.md

* Update README_CloudWatch_Logs.md

Author: Tensho

events/README.md

@@ -14,6 +14,10 @@ This package provides input types for Lambda functions that process AWS events.
 
 [CloudFormation Events](../cfn/README.md)
 
+[CloudWatch Events](README_CloudWatch_Events.md)
+
+[CloudWatch Logs](README_CloudWatch_Logs.md)
+
 [Chime Bot Events](README_Chime_Bots.md)
 
 [Code Commit Events](README_CodeCommit.md)

events/README_CloudWatch_Events.md

@@ -0,0 +1,17 @@
+
+# Sample Function
+
+The following is a Lambda function that receives Amazon CloudWatch event record data as input and writes event detail to Lambda's CloudWatch Logs. Note that by default anything written to Console will be logged as CloudWatch Logs events.
+
+```go
+import (
+	"context"
+	"fmt"
+
+	"github.com/aws/aws-lambda-go/events"
+)
+
+func handler(ctx context.Context, event events.CloudWatchEvent) {
+	fmt.Printf("Detail = %s\n", event.Detail)
+}
+```

events/README_CloudWatch_Logs.md

@@ -0,0 +1,20 @@
+
+# Sample Function
+
+The following is a Lambda function that receives Amazon CloudWatch Logs event record data as input and writes message part to Lambda's CloudWatch Logs. Note that by default anything written to Console will be logged as CloudWatch Logs events.
+
+```go
+import (
+	"context"
+	"fmt"
+
+	"github.com/aws/aws-lambda-go/events"
+)
+
+func handler(ctx context.Context, logsEvent events.CloudwatchLogsEvent) {
+	data, _ := logsEvent.AWSLogs.Parse()
+	for _, logEvent := range data.LogEvents {
+		fmt.Printf("Message = %s\n", logEvent.Message)
+  	}
+}
+```