Adding missing LICENSE file

LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 ignace nyamagana butera
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -4,11 +4,11 @@ uri-src
 [![Build](https://github.com/thephpleague/uri-src/workflows/build/badge.svg)](https://github.com/thephpleague/uri-src/actions?query=workflow%3A%22build%22)
 [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE)
 
-The `uri-src` is the monorepo which enables the development of the differnt league `uri` related packages:
+The `uri-src` is the monorepo which enables the development of the different league `uri` related packages:
 
-- URI
-- URI Components
-- URI Interfaces
+- [URI](https://github.com/thephpleague/uri)
+- [URI Components](https://github.com/thephpleague/uri-components)
+- [URI Interfaces](https://github.com/thephpleague/uri-interfaces)
 
 System Requirements
 -------