Support network proxies

config.example.yml

@@ -10,6 +10,12 @@ port: 9999
 # username: yowmamasita
 # password: 1234
 
+# You can proxy all zurg requests like this:
+# proxy: "http://[username:password@]host:port"
+# proxy: "https://[username:password@]host:port"
+# proxy: "socks4://[username@]host:port"
+# proxy: "socks5://[username:password@]host:port"
+
 # How many requests in parallel should we send to Real-Debrid API?
 concurrent_workers: 20