Add README to the webservices folder

main/webservices/README.md

@@ -0,0 +1,28 @@
+= Chamilo Webservices =
+
+Chamilo webservices are not the greatest API you can find around, but they 
+kind of work, as long as you don't get fooled by the many files in this
+folder.
+
+The main maintained script is registration.soap.php
+The way to call it is relatively well described in the example:
+ client_soap.php
+
+Basically, we have a weird way of authenticating you (until we release APIv2
+with OAuth or similar authentication methods). We ask you to include the
+public IP of the server calling the webservice inside the key, and to combine
+that key with the $_configuration['security_key'] value in 
+app/config/configuration.php.
+
+You can get your own public IP by doing a wget on the testip.php file in this
+folder (you can do that automatically through a file_get_contents() or fopen()
+as well, if you need to).
+There is a way to alter this mechanism by adding a specific IP to the file
+webservice-auth-ip.conf.php.
+
+Once you're all setup with the key to connect to Chamilo, just call your 
+webservices like you would normally do through SOAP (that's where the 
+client_soap.php file can really get you through).
+
+Most of the other files are (failed) attempts at redesigning the API. We hope
+we'll get the chance to provide a better API soon.