fix typo of readme
diff --git a/readme.md b/readme.md
index 1c0b5d7..459990d 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,4 @@
-[![Build Status](https://github.com/herumi/xbyak/actions/workflows/main.yml/badge.svg)](https://github.com/herumi/xbyak/actions/workflows/main.yml)
+![Build Status](https://github.com/herumi/xbyak/actions/workflows/main.yml/badge.svg)](https://github.com/herumi/xbyak/actions/workflows/main.yml)
 
 #lXbyak 6.03 ; JIT assembler for x86(IA32), x64(AMD64, x86-64) by C++