doc: update README

poppinlp · Jul 6, 2018 · f3fae83 · f3fae83
1 parent 51e1bf1
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diff --git a/README.md b/README.md
@@ -17,6 +17,11 @@ You may know [hpkp](https://github.com/helmetjs/hpkp) as a [hpkp middleware](htt
 
 You may find the reason in [benchmark result](./benchmarks/benchmark.txt) and wish you like it. :)
 
+## Difference
+
+This plugin has passed all [hpkp](https://github.com/helmetjs/hpkp) test cases.
+And no difference in options.
+
 ## Install
 
 Via npm: