diff --git a/README.md b/README.md
index 738fc57..7ab0c56 100644
--- a/README.md
+++ b/README.md
@@ -221,8 +221,8 @@ content-length: 24
 
 ## Ceveat
 
-Some cases in production deployment mode, there may be problems related to `Request uri too long`. If you are using kubernetes ingress, try to apply this config:
-```
+Some cases in production deployment mode, there may be problems related to `Request uri too long`. If you are using kubernetes ingress, try to apply this configuration:
+```yml
 annotations:
   nginx.ingress.kubernetes.io/client-header-buffer-size: 100k
   nginx.ingress.kubernetes.io/large-client-header-buffers: 4 100k