Update example config to show examples of RR usage in hypothetical situations.

src/proxychains.conf

@@ -107,7 +107,59 @@ tcp_connect_time_out 8000
 #
 #       proxy types: http, socks4, socks5
 #        ( auth types supported: "basic"-http  "user/pass"-socks )
+
+# Select the list you want to use by setting the PROXYCHAINS_CHAIN envvar to
+# the name of the list.  If the envvar is not set, the default chain is
+# "ProxyList".
 #
+# Example 1: Your corporate network admin is the BOFH.  You're not officially
+#   allowed access to the internet.  But you've found a sequence of proxies
+#   setup to connect the various internal networks, with one of them having
+#   internet access.
+# [LetMeOut]
+# strict_chain
+# socks5 192.168.89.2	1080
+# http   172.16.30.10	8080
+# http   10.10.5.4	80
+#
+# Example 2: Suppose you have access to several fast caching proxies and you
+#   want to load balance connections across them.  Since they're fast, they
+#   shouldn't need large timeouts.  If one of them happens to go down, it will
+#   be removed from the active list and each connect() will use the next proxy,
+#   going back to the beginning once the end is reached.
+# [LoadBalanceList]
+# round_robin_chain
+# max_chain = 1
+# tcp_read_time_out 2000
+# tcp_connect_time_out 1000
+# http	192.168.89.2	8080
+# http	192.168.89.3	8080
+# http	192.168.89.4	8080
+# http	192.168.89.5	8080
+#
+# Example 3: We're doing some scraping again the wishes of our target, so we
+#   come at him from all sides. But since we're using random free proxies found
+#   on the web, many of the proxies are slow an unreliable.  Give a larger
+#   timeout to account for this.  The broken/dead ones will be removed as they
+#   are encountered and we'll cycle through each live proxy sequentially per
+#   connect().
+# [AvoidDetection]
+# round_robin_chain
+# max_chain = 1
+# tcp_read_time_out 20000
+# tcp_connect_time_out 10000
+# http    91.106.83.204 80   
+# http    178.237.184.222 3128
+# http    109.207.61.164 8090
+# http    190.75.178.219 8080
+# http    168.63.43.185 3128
+# http    193.95.90.194 3128
+# http    54.214.237.232 80
+# http    81.169.166.83 80
+# http    201.85.50.249 80
+# http    173.192.81.137 8080
+# http    79.127.101.96 8080
+
 [ProxyList]
 # add proxy here ...
 # meanwile