readme, config example

Author: DevAlone

README.rst

@@ -189,7 +189,13 @@ Read more about API here -> https://github.com/DevAlone/proxy_py/tree/master/doc
 
 How to contribute?
 ******************
-*TODO: write guide about it*
+
+Just fork, do your changes(implement new collector, fix a bug
+or whatever you want) and create pull request.
+
+Here are some useful guides:
+
+`How to create a collector <https://proxy-py.readthedocs.io/en/latest/guides/how_to_create_collector.html>`_
 
 How to test it?
 ***************

config_examples/settings.py

@@ -1,7 +1,12 @@
 from ._settings import *
 
+DEBUG = False
+
 DATABASE_CONNECTION_KWARGS['database'] = 'proxy_py'
 DATABASE_CONNECTION_KWARGS['user'] = 'proxy_py'
 DATABASE_CONNECTION_KWARGS['password'] = 'proxy_py'
 
-DEBUG = False
+PROXY_PROVIDER_SERVER_ADDRESS = {
+    'HOST': '0.0.0.0',
+    'PORT': 55555,
+}