diff --git a/README.md b/README.md
index d4c5477..3f83aed 100644
--- a/README.md
+++ b/README.md
@@ -82,12 +82,18 @@ Firstly you must call `FastAPICache.init` on startup event of `fastapi`, there a
 
 If you want cache `fastapi` response transparently, you can use `cache` as decorator between router decorator and view function and must pass `request` as param of view function.
 
+Parameter | type, description
+------------ | -------------
+expire | int, states a caching time in seconds
+namespace | str, namespace to use to store certain cache items
+coder | which coder to use, e.g. JsonCoder
+key_builder | which key builder to use, default to builtin
+
+
 And if you want use `ETag` and `Cache-Control` features, you must pass `response` param also.
 
 You can also use `cache` as decorator like other cache tools to cache common function result.
 
-`expire` parameter states a caching time in seconds.
-
 ### Custom coder
 
 By default use `JsonCoder`, you can write custom coder to encode and decode cache result, just need inherit `fastapi_cache.coder.Coder`.