Merge pull request #86 from microcmsio/docs/readme-jp

日本語版READMEの追加

Author: wasabi-tr

README.md

@@ -1,5 +1,7 @@
 # microCMS JavaScript SDK
 
+[日本語版 README](README_jp.md)
+
 It helps you to use microCMS from JavaScript and Node.js applications.
 
 <a href="https://discord.com/invite/K3DPqw4EJ2" target="_blank"><img src="https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white" alt="Discord"></a>
@@ -665,6 +667,6 @@ const writeClient = createClient({
 });
 ```
 
-# LICENSE
+## LICENSE
 
 Apache-2.0