V4 readme updates (#353)

* README for v4

Author: egulias

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2013-2022 Eduardo Gulias Davis
+Copyright (c) 2013-2023 Eduardo Gulias Davis
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,8 +1,8 @@
 # EmailValidator
 
-[![Build Status](https://github.com/egulias/EmailValidator/workflows/tests/badge.svg)](https://github.com/egulias/EmailValidator/actions)
-[![Code Quality](https://scrutinizer-ci.com/g/egulias/EmailValidator/badges/quality-score.png?b=3.x)](https://scrutinizer-ci.com/g/egulias/EmailValidator/?branch=3.x)
-[![Test Coverage](https://scrutinizer-ci.com/g/egulias/EmailValidator/badges/coverage.png?b=3.x)](https://scrutinizer-ci.com/g/egulias/EmailValidator/?branch=3.x)
+[![Build Status](https://github.com/egulias/EmailValidator/workflows/tests/badge.svg?branch=4.x)](https://github.com/egulias/EmailValidator/actions)
+[![Code Quality](https://scrutinizer-ci.com/g/egulias/EmailValidator/badges/quality-score.png?b=3.x)](https://scrutinizer-ci.com/g/egulias/EmailValidator/?branch=4.x)
+[![Test Coverage](https://scrutinizer-ci.com/g/egulias/EmailValidator/badges/coverage.png?b=3.x)](https://scrutinizer-ci.com/g/egulias/EmailValidator/?branch=4.x)
 
 A library for validating emails against several RFC.
 
@@ -22,10 +22,10 @@ This library aims to support RFCs:
 **Current major version with full support is v3**
 
 | Version |  Released  |  EOL  | Only critical bug fixes | Full  |
-| ------- | :--------: | :---: | :---------------------: | :---: |
-| v4.x    |            |   -   |            X            |   X   |
-| v3.x    | 2020/12/29 |   -   |            X            |   X   |
-| v2.1.x  | 2016/05/16 |  YES  |            X            |       |
+| :-----: | :--------: | :---: | :---------------------: | :---: |
+| v4.x    | 2023/01/07 |   -   |            X            |   X   |
+| v3.x    | 2020/12/29 |   -   |            X            |       |
+| v2.1.x  | 2016/05/16 |  YES  |                         |       |
 | v1.2    | 2013/19/05 |  YES  |                         |       |