Add IPWARE_META_PROXY_COUNT setting + corresponding docs (#108)

README.md

@@ -94,6 +94,11 @@ get_client_ip(request, request_header_order=['X_FORWARDED_FOR'])
 get_client_ip(request, request_header_order=['X_FORWARDED_FOR', 'HTTP_X_FORWARDED_FOR'])
 ```
 
+- ### Proxy Count
+
+  The default meta proxy count is 0 unless explictly provided as an argument to `get_client_ip()`. You may customize the order
+  by providing your own `IPWARE_META_PROXY_COUNT` by adding it to your project's settings.py
+
 ### Trusted Proxies
 
 If your Django server is behind one or more known proxy server(s), you can filter out unwanted requests

ipware/ip.py

@@ -10,7 +10,7 @@ def get_client_ip(
     request_header_order=None,
 ):
     leftmost = proxy_order == 'left-most'
-    proxy_count = proxy_count if proxy_count is not None else 0
+    proxy_count = proxy_count if proxy_count is not None else getattr(settings, 'IPWARE_META_PROXY_COUNT', 0)
     proxy_list = proxy_trusted_ips if proxy_trusted_ips is not None else []
     request_header_order = getattr(settings, 'IPWARE_META_PRECEDENCE_ORDER', request_header_order)