Add proxy option to readme.

README.md

@@ -126,6 +126,19 @@ Here are the options that work right now.
         -H, --header HEADER             Add a header. Use it multiple times to
                                         add multiple headers.
 
+        -p, --proxy PROXY               Use the specified HTTP/SOCKS proxy.
+                                        Specify as protocol://hostname:port
+                                        Pass an empty string ("") or 'none' to
+                                        disable proxy (connect directly).
+                                        Supported protocols:
+                                          http
+                                          socks4
+                                          socks4a
+                                          socks5
+                                          socks5h
+                                        (Note: socks5 leaks DNS. Use socks5h
+                                        for e.g., Tor.)
+
 ## Scope
 
 rsstube is not a tool for generating new feeds where they don't already exist. It is a tool for locating official feed URLs provided by the site.

src/parse_options.py

@@ -118,7 +118,7 @@ def parse_options(params):
 				options["output_format"] = str.lower(arg)
 			arg_count += 2
 		elif opt in ("-p", "--proxy"):
-			if str.lower(arg) == "none":
+			if str.lower(arg) == "none" or arg == "":
 				options["curl_args"]["proxy"] = False
 			else:
 				options["curl_args"]["proxy"] = True