docs: update the readme

Author: bxcodec

README.md

@@ -46,7 +46,7 @@ Short example:
 
 // Inject the HTTP Client with httpcache
 client := &http.Client{}
-_, err := httpcache.NewWithInmemoryCache(client, time.Second*60)
+_, err := httpcache.NewWithInmemoryCache(client, true, time.Second*60)
 if err != nil {
   log.Fatal(err)
 }
@@ -81,12 +81,21 @@ Example:
 
 ```go
 client := &http.Client{}
-_, err := httpcache.NewWithCustomStorageCache(client, mystorage.NewCustomInMemStorage())
+_, err := httpcache.NewWithCustomStorageCache(client,true, mystorage.NewCustomInMemStorage())
 if err != nil {
 	log.Fatal(err)
 }
 ```
 
+### About RFC 7234 Compliance
+You can disable/enable the RFC Compliance as you want. If RFC 7234 is too complex for you, you just can disable it by set the RFCComliance parameters to false
+
+```go
+_, err := httpcache.NewWithInmemoryCache(client, false, time.Second*60)
+// or 
+_, err := httpcache.NewWithCustomStorageCache(client,false, mystorage.NewCustomInMemStorage())
+```
+
 ### TODOs
 - See the [issues](https://github.com/bxcodec/httpcache/issues)