add badges on README

README.md

@@ -1,4 +1,9 @@
 # rdiam(alpha version)
+
+[![Test](https://github.com/snowhork/rdiam/actions/workflows/test.yml/badge.svg)](https://github.com/snowhork/rdiam/actions/workflows/test.yml)
+[![Apache-2.0](https://img.shields.io/github/license/snowhork/rdiam)](LICENSE)
+
+
 `rdiam` is CLI for redash group members, inspired by [bqiam](https://github.com/hirosassa/bqiam).
 This is alpha version.
 
@@ -10,4 +15,4 @@ REDASH_ENDPOINT="your redash domain" REDASH_API_KEY="your user api key" \
 go run ./ add -u user1@email.com,user2@emali.com -g group1,group2
 ```
 
-In the future version, the endpoint and api_key may be managed by setting file.
+In the future version, the endpoint and api_key may be managed by setting file.