Docs: update and polish kubernetes-app and monitoring examples

Signed-off-by: Solomon Hykes <sh.github.6811@hykes.org>

examples/monitoring/main.cue

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"dagger.io/aws"
+)
+
+// AWS account: credentials and region
+awsConfig: aws.#Config & {
+	region: *"us-east-1" | string
+}
+
+// URL of the website to monitor
+website: string | *"https://www.google.com"
+
+// Email address to notify of monitoring alerts
+email: string
+
+// The monitoring service running on AWS Cloudwatch
+monitor: #HTTPMonitor & {
+	notifications: [
+		#Notification & {
+			endpoint: email
+			protocol: "email"
+		},
+	]
+	canaries: [
+		#Canary & {
+			name: "default"
+			url:  website
+		},
+	]
+	cfnStackName: "my-monitor"
+	"awsConfig":  awsConfig
+}