diff --git a/.gitignore b/.gitignore
index 6dde349..c3dfc3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,7 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+
+# exclude idea files
+.idea
+*.iml
diff --git a/README.md b/README.md
index 2d638c7..dd4fc4b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 		<img src="https://img.shields.io/badge/Maven Central-1.0.0-blue.svg" ></img>
 	</a>
 	<a target="_blank" href="https://gitee.com/yadong.zhang/JustAuth/blob/master/LICENSE">
-		<img src="https://img.shields.io/badge/License-GPL%20v3-yellow.svg" ></img>
+		<img src="https://img.shields.io/apm/l/vim-mode.svg?color=yellow" ></img>
 	</a>
 	<a target="_blank" href="https://www.oracle.com/technetwork/java/javase/downloads/index.html">
 		<img src="https://img.shields.io/badge/JDK-1.8+-green.svg" ></img>