feat: drop v2. BREAKING CHANGE upgrade to v3

horike37 · horike37 · commit f37109987cde · 2022-03-17T21:30:14.000+09:00
diff --git a/README.md b/README.md
@@ -881,4 +881,4 @@ custom:
                 "success": false,
                 "errorMessage": "Client Error"
               }
-```
+```
