Remove table.

Suspect it is causing sphinx to crash on readthedocs. See
https://github.com/sphinx-doc/sphinx/issues/1871

docs/requirements.rst

@@ -8,18 +8,29 @@ Client side Requirements
   (The server doesn't need admin access.)
 - Python 2.7 or Python 3.5.
 
-+-------+--------+------------+-----------------------------------------------+
-| OS    | Method | Features   | Requirements                                  |
-+=======+========+============+===============================================+
-| Linux | NAT    | * IPv4 TCP + iptables DNAT, REDIRECT, and ttl modules.     |
-+       +--------+------------+-----------------------------------------------+
-|       | TPROXY | * IPv4 TCP + Linux with TPROXY support.                    |
-|       |        | * IPv4 UDP + Python 3.5 preferred (see below).             |
-|       |        | * IPv6 TCP + Python 2 may require PyXAPI (see below).      |
-|       |        | * IPv6 UDP +                                               |
-+-------+--------+------------+-----------------------------------------------+
-| MacOS | PF     | * IPv4 TCP + You need to have the pfctl command.           |
-+-------+--------+------------+-----------------------------------------------+
+
+Linux with NAT method
+~~~~~~~~~~~~~~~~~~~~~
+Supports:
+
+* IPv4 TCP
+* IPv4 DNS
+
+Requires:
+
+* iptables DNAT, REDIRECT, and ttl modules.
+
+
+Linux with TPROXY method
+~~~~~~~~~~~~~~~~~~~~~~~~
+Supports:
+
+* IPv4 TCP
+* IPv4 UDP (requires ``recmsg`` - see below)
+* IPv6 DNS (requires ``recmsg`` - see below)
+* IPv6 TCP
+* IPv6 UDP (requires ``recmsg`` - see below)
+* IPv6 DNS (requires ``recmsg`` - see below)
 
 .. _PyXAPI: http://www.pps.univ-paris-diderot.fr/~ylg/PyXAPI/
 
@@ -29,6 +40,18 @@ later. Under Python 2 you might find it sufficient installing PyXAPI_ to get
 the ``recvmsg()`` function.
 
 
+MacOS with PF method
+~~~~~~~~~~~~~~~~~~~~
+Supports:
+
+* IPv4 TCP
+* IPv4 DNS
+
+Requires:
+
+* You need to have the pfctl command.
+
+
 Server side Requirements
 ------------------------
 Python 2.7 or Python 3.5.