Add some more details to the network section of QuickProfileLanguage

QuickProfileLanguage.md

@@ -148,8 +148,9 @@ network rules. For example, a network daemon might need:
 
 ```
  /profile {
-   network inet dgram,
-   network inet stream,
+   # Use "inet" for IPv4 only, "inet6" for IPv6 only, or omit for both
+   network inet dgram, # can also say "udp" instead of stream
+   network inet stream, # can also say "tcp" instead of "stream"
  }
 ```