Basic stack and a decent readme

ReadMe.md

@@ -1 +1,39 @@
-# TBD
+# Billing Alerts Stack
+
+![Billing Alerts Diagram](https://static.cloudsumu.com/billingalerts/diagram.png)
+
+Uses SNS, Lambda, and CloudWatch to send billing alerts via:
+- Email
+- Text
+- Discord
+- Slack
+
+Easy to launch and configure!
+
+## Launching Stack
+
+### Option 1: Launch via Link
+
+Make sure you are logged into the AWS Console and have permissions then click:
+
+[![Launch in AWS Console](https://static.cloudsumu.com/billingalerts/launch_button.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/create/template?stackName=BillingAlerts&templateURL=https://sumu-billingalerts.s3.amazonaws.com/production/cloudformation/top.yaml)
+
+Fill out the parameters and launch!
+
+### Option 2: Manually input template into AWS Console
+
+1.  Download top template or copy URL for later.
+
+    *Development S3 URL:* [https://sumu-billingalerts.s3.amazonaws.com/develop/cloudformation/top.yaml](https://sumu-billingalerts.s3.amazonaws.com/production/cloudformation/top.yaml)
+
+    *Production S3 URL:* [https://sumu-billingalerts.s3.amazonaws.com/production/cloudformation/top.yaml](https://sumu-billingalerts.s3.amazonaws.com/production/cloudformation/top.yaml)
+
+2. Go to [CloudFormation on the AWS Console](https://console.aws.amazon.com/cloudformation/home)
+3. Click the "Create stack" button
+4. Under "Prepare template" make sure that "Template is ready" is selected, it should be the default.
+
+    Then under "Template Source" either paste in the template URL or upload the downloaded template.
+
+    Then click "Next"
+
+5.  Fill out stack parameters then launch!