Update doc [skip ci].

Author: vuongxuongminh

README.md

@@ -7,7 +7,7 @@
 
 ## About
 
-This library help to extract trusted JWT payload from request forwarded by Istio Envoy proxy. It's based
+This library help to extract trusted JWT payload from request forwarded by Istio Sidecar. It's based
 on [PSR-7 Server Request Message](https://www.php-fig.org/psr/psr-7/) ensures interoperability with other packages and
 frameworks.
 

assets/plantuml/request.txt

@@ -1,14 +1,9 @@
 @startuml
-[*] --> IstioEnvoyProxy : Request with JWT
+[*] --> IstioSidecar : Request with JWT
 
-IstioEnvoyProxy : Check JWT issuer exist in rules
-IstioEnvoyProxy : & validate JWT by issuer JWKS
-IstioEnvoyProxy : & check authorization rules
-IstioEnvoyProxy --> Application : Valid
-IstioEnvoyProxy --> Error : Invalid
+IstioSidecar : Validate JWT
+IstioSidecar --> Application : Valid
+IstioSidecar --> Error : Invalid
 
 Application : Use this library to extract and use trusted JWT payload
-Application --> [*] : Response
-
-Error --> [*] : Response (401 or 403)
 @enduml