diff --git a/README.md b/README.md
index 27a9c60..3e575a0 100644
--- a/README.md
+++ b/README.md
@@ -86,10 +86,15 @@
  
     ❌ [ritina]
 
+1. issue
+
+    ✅ [ˈɪʃu]
+ 
+    ❌ [ˈaɪʃu]
 
 > 参考资料
 > 1. https://www.zhihu.com/question/19739907
 > 2. https://www.v2ex.com/t/131094
 > 3. https://www.v2ex.com/t/309350
 > 4. https://www.v2ex.com/t/63781
-> 5. https://www.v2ex.com/t/246033
\ No newline at end of file
+> 5. https://www.v2ex.com/t/246033