📝 Add README

README.md

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+# KompalWeather
+
+## What is KompalWeather?
+
+KompalWeather reports on how crowded kompal-yu is on Twitter ([@KompalWeather](https://twitter.com/KompalWeather)) and Slack. 
+
+[Kompal-yu （金春湯）](https://kom-pal.com/) is one of the best saunas and public bathes in Osaki. They are disclosing how crowded it is on their site. Furthermore, they provide API. KompalWeather utilizes this API.
+
+Take advantage of kompal weather to optimize your sauna experience!
+
+## Features
+
+### Existing
+
+* Notification about the state of congestion on
+  * Twitter [@KompalWeather](https://twitter.com/KompalWeather)
+  * Slack channel via incoming webhook)
+* Record data in out Google Sheets every 15 minutes during business hours
+
+### Plan
+
+* Visualization of weekly congestion
+
+If you have a feature request, please make an issue from [here](https://github.com/toshi0607/KompalWeather/issues/new)!
+
+## Architecture
+
+### Cloud
+
+* Cloud Run
+* Cloud Scheduler
+* Secret Manager
+* Cloud Build
+
+![image dependency](./terraform/development/kompal-graph.jpg)
+
+Managed by [Terraform](https://github.com/toshi0607/KompalWeather/tree/master/terraform/development)