[ci skip] Fix docs

docs/pages/introduction.rst

@@ -14,14 +14,23 @@ Summary
 Easy to set up traffic control of network bandwidth/latency/packet-loss to a network interface.
 
 
-Feature
--------
+Traffic control features
+------------------------
+
+Network
+~~~~~~~
+
+Traffic control can be specified network to apply to:
+
+-  Outgoing/Incoming packets
+-  Certain IP address/network and port
+
+Available parameters
+~~~~~~~~~~~~~~~~~~~~
 
-- Automatic table creation from data
-- Support various data types of record(s) insertion into a table:
-    - dictionary
-    - namedtuple
-    - list
-    - tuple
-- Create a table from a csv file
+The following parameters can be set to network interfaces.
 
+-  Network bandwidth rate [G/M/K bps]
+-  Network latency [milliseconds]
+-  Packet loss rate [%]
+-  Packet corruption rate [%]