Encourage running 'vpn-slice --help' to see all options for routing c…

…ustomization

#99 (comment)

README.md

@@ -36,11 +36,16 @@ interfaces.
 
 `vpn-slice` makes it easy to set up a split-tunnel VPN:
 
-* It only routes traffic for **specific hosts or subnets** through the VPN.
+* By default, it only routes traffic for **specific hosts or subnets**
+  through the VPN.
 * It automatically looks up named hosts, using the VPN's DNS servers,
   and adds entries for them to your `/etc/hosts` (which it cleans up
   after VPN disconnection), however it **does not otherwise alter your
   `/etc/resolv.conf` at all**.
+* It has many additional options to customize routing and lookup (for
+  example, `--route-splits` to additionally route traffic for specific
+  subnets requested *by the server*). Run `vpn-slice --help` to see
+  them all.
 
 ## Who this is for
 

vpn_slice/__main__.py

@@ -454,7 +454,7 @@ def parse_args_and_env(args=None, environ=os.environ):
     g.add_argument('--domains-vpn-dns', dest='vpn_domains', default=None, help="comma separated domains to query with vpn dns")
     g = p.add_argument_group('Debugging options')
     g.add_argument('--self-test', action='store_true', help='Stop after verifying that environment variables and providers are configured properly.')
-    g.add_argument('-v', '--verbose', default=0, action='count', help="Explain what %(prog)s is doing")
+    g.add_argument('-v', '--verbose', default=0, action='count', help="Explain what %(prog)s is doing. Specify repeatedly to increase the level of detail.")
     p.add_argument('-V', '--version', action='version', version='%(prog)s ' + __version__)
     g.add_argument('-D', '--dump', action='store_true', help='Dump environment variables passed by caller')
     g.add_argument('--no-fork', action='store_false', dest='fork', help="Don't fork and continue in background on connect")