Including a README.md file

README.md

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+# PHP Memsource API
+
+I am creating this Memsource API as a way to learn how to deal with one and to use with my next projects. I will not create the fully functional API here, but feel free to send a pull request if it were interesting for you.
+
+There are other Memsource API repositories on GibHub that appears to be fully functional if you need it.
+
+## Getting an Access Token
+
+To be able to use the Memsource API, you need an **access token**, but to get it, you need to:
+
+### Register as a developer on Memsource website
+
+So you will receive your:
+    - *client id* 
+    - *client secret*
+
+### Get an Authorization Code
+
+```php
+$memsource = new \BrunoFontes\Memsource();
+$url = $memsource->oauth()->getAuthorizationCodeUrl($cliend_id, $callback_uri);
+```
+
+Redirect your browser to this returned `$url` so the user can login via *oauth*. 
+
+The `$callback_uri` will be called by **Memsource** with a `$_GET['code']` that contains your Authorization Code, which you can use to...
+
+### Get an Access Token
+
+```php
+$authCode = $_GET['code'];
+$memsource = new \BrunoFontes\Memsource();
+$token = $memsource->oauth()->getAccessToken($authCode, $client_id, $client_secret, $callback_uri);
+```
+
+Safely store this `$token` with the related user data and use it on any 
+
+## Bilingual Files
+