Update license and and sources in readme

Author: TheTechsTech

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Symplely - Lawrence Stubbs, and Vaibhav Pandey, Luke Kingsley, Dragonfly Development Inc.
+Copyright (c) 2019 Symplely - Lawrence Stubbs, and Vaibhav Pandey, Luke Kingsley, Dragonfly Development Inc, Paul M. Jones, Julián Gutiérrez
 
 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:
 

README.md

@@ -900,6 +900,9 @@ $response = ResponseCookies::expire($response, 'session_cookie');
 
 Normally, **PHP** will send out headers for you automatically when you call `session_start()`. However, this means the headers are not being sent as part of the PSR-7 response object, and are thus outside your control. `Sessions` puts them back under your control by placing the relevant headers in the PSR-7 response.
 
+This class is a merge and rework of `Session`, and `SessionHeadersHandler` class in repo, [Relay.Middleware](https://github.com/relayphp/Relay.Middleware), and [sessionware
+](https://github.com/juliangut/sessionware/tree/2.x).
+
 This manager provides a nice OOP API to access session related actions:
 
 `$session = new \Async\Http\Sessions($id, $cacheLimiter, $cacheExpire);`