chore: updated readme

README.md

@@ -6,5 +6,10 @@
 [![npm download](https://img.shields.io/npm/dt/@sparser/email-address-parser?label=npm%20download)](https://www.npmjs.com/package/@sparser/email-address-parser)
 ![build status](https://github.com/Sayan751/email-address-parser/workflows/build/badge.svg)
 
-An [RFC 5322](https://tools.ietf.org/html/rfc5322), and [RFC 6532](https://tools.ietf.org/html/rfc6532) compliant email address parser made with [pest parser](https://github.com/pest-parser/pest).
+An [RFC 5322](https://tools.ietf.org/html/rfc5322) (without [display name support](#out-of-scope)), and [RFC 6532](https://tools.ietf.org/html/rfc6532) compliant email address parser made with [pest parser](https://github.com/pest-parser/pest).
 This repository contains a [rust crate](./rust-lib/README.md) as well as a wrapper [WebAssembly module](./npm-pkg/README.md).
+
+### Out of scope
+
+Note that this packages is only for parsing email addresses.
+It does not support parsing email addresses with display name, such as the following: `John Doe <[email protected]>`.