Added README in xos_config folder
diff --git a/.gitignore b/.gitignore
index 451dd79..3fe092d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,5 @@
 xos/core/xoslib/coverage
 node_modules
 xos/xos_configuration/*
+.idea/*
+xos.iml
diff --git a/xos/xos/config.py b/xos/xos/config.py
index 7a64de9..2909959 100644
--- a/xos/xos/config.py
+++ b/xos/xos/config.py
@@ -82,6 +82,7 @@
 			try:
 				if os.path.isdir(filename):
 					config_list = list(reversed(os.listdir(filename)))
+ 					config_list.remove('README.md')
 					config_list = [os.path.join(filename, s) for s in config_list]
 					self.config.read(config_list)
 				else:
diff --git a/xos/xos_configuration/README.md b/xos/xos_configuration/README.md
new file mode 100644
index 0000000..044d7e0
--- /dev/null
+++ b/xos/xos_configuration/README.md
@@ -0,0 +1,99 @@
+# Managing Configurations
+
+XOS comes with several pre-configured envirnments. The main available configurations are:
+
+- Frontend Only
+- - CORD
+Every configurations come with different settings and different features, from GUI elements to Services.
+
+__NOTE: in this folder files should not be added. They will broke the configuration system.__
+
+## Basic configuration
+
+A common configuration file is saved in `xos/configurations/common/xos_common_config`. In this file are stored all the common configurations for XOS.
+
+This is the base config:
+``
+[plc]
+name=plc
+deployment=plc
+
+[db]
+name=xos
+user=postgres
+password=password
+host=localhost
+port=5432
+
+[api]
+host=localhost
+port=8000
+ssl_key=None
+ssl_cert=None
+ca_ssl_cert=None
+ratelimit_enabled=0
+omf_enabled=0
+mail_support_address=support@localhost
+nova_enabled=True
+logfile=/var/log/xos.log
+
+[nova]
+admin_user=admin@domain.com
+admin_password=admin
+admin_tenant=admin
+url=http://localhost:5000/v2.0/
+default_image=None
+default_flavor=m1.small
+default_security_group=default
+ca_ssl_cert=/etc/ssl/certs/ca-certificates.crt
+
+[observer]
+pretend=False
+backoff_disabled=False
+images_directory=/opt/xos/images
+dependency_graph=/opt/xos/model-deps
+logfile=/var/log/xos_backend.log
+
+[gui]
+disable_minidashboard=True
+branding_name=Open Cloud
+#branding_css= #no branding css is provided by default
+branding_icon=/static/logo.png
+
+``
+
+## Extending configuration
+
+### How it works
+
+In some environment some changes to the configuration are needed, to achieve this XOS reads configurations from a `xos/xos_configuration`.
+
+All the configuration files in this folder will be parsed with [ConfigParser](https://docs.python.org/2/library/configparser.html).
+
+### Exetending a configuration
+
+_An example is available in the CORD config_
+
+These are the basic step to extend a configuration. 
+_From now we'll use `myConf` as placeholder for the current configuration._
+
+**Local Config**
+
+- In your configuration create a new config file named: `xos_<myConf>_config`
+Sample local config:
+``
+[gui]
+branding_name=A BRAND NAME
+branding_icon=/static/my_logo.png
+``
+
+_The file above will change the displayed brand name and the logo in the UI_
+
+**Makefile Changes**
+- Clean the configuration folder: `rm ../../xos_configuration/*`
+- - Add the common config: `cp ../common/xos_common_config ../../xos_configuration/`
+- - Add the local config: `cp ./xos_<myConf>_config ../../xos_configuration/`
+_IMPORTANT: this instructions have to be executed before `docker build`_
+
+
+