Updated links to zeromq documentation

API.md

@@ -5,7 +5,7 @@ ZMQ_CONSTANT_NAME in the C API turns into zmq.CONSTANT_NAME in Lua.
 ## init
 
 Initialises ØMQ context.
-See [zmq_init(3)](http://api.zeromq.org/zmq_init.3.html).
+See [zmq_init(3)](http://api.zeromq.org/zmq_init.html).
 
 zmq.init(app_threads, io_threads)  
 zmq.init(app_threads, io_threads, flags)
@@ -13,49 +13,49 @@ zmq.init(app_threads, io_threads, flags)
 ## term
 
 Terminates ØMQ context.
-See [zmq_term(3)](http://api.zeromq.org/zmq_term.3.html).
+See [zmq_term(3)](http://api.zeromq.org/zmq_term.html).
 
 ctx:term()
 
 ## socket
 
 Creates ØMQ socket.
-See [zmq_socket(3)](http://api.zeromq.org/zmq_socket.3.html).
+See [zmq_socket(3)](http://api.zeromq.org/zmq_socket.html).
 
 ctx:socket(type)
 
 ## close
 
 Destroys ØMQ socket.
-See [zmq_close(3)](http://api.zeromq.org/zmq_close.3.html).
+See [zmq_close(3)](http://api.zeromq.org/zmq_close.html).
 
 s:close()
 
 ## setsockopt
 
 Sets a specified option on a ØMQ socket.
-See [zmq_setsockopt(3)](http://api.zeromq.org/zmq_setsockopt.3.html).
+See [zmq_setsockopt(3)](http://api.zeromq.org/zmq_setsockopt.html).
 
 s:setsockopt(option, optval)
 
 ## bind
 
 Binds the socket to the specified address.
-See [zmq_bind(3)](http://api.zeromq.org/zmq_bind.3.html).
+See [zmq_bind(3)](http://api.zeromq.org/zmq_bind.html).
 
 s:bind(addr)
 
 ## connect
 
 Connect the socket to the specified address.
-See [zmq_connect(3)](http://api.zeromq.org/zmq_connect.3.html).
+See [zmq_connect(3)](http://api.zeromq.org/zmq_connect.html).
 
 s:connect(addr)
 
 ## send
 
 Sends a message.
-See [zmq_send(3)](http://api.zeromq.org/zmq_send.3.html).
+See [zmq_send(3)](http://api.zeromq.org/zmq_send.html).
 
 s:send(msg)  
 s:send(msg, flags)
@@ -63,14 +63,14 @@ s:send(msg, flags)
 ## flush
 
 Flushes unflushed messages to the socket.
-See [zmq_flush(3)](http://api.zeromq.org/zmq_flush.3.html).
+See [zmq_flush(3)](http://api.zeromq.org/zmq_flush.html).
 
 s:flush()
 
 ## recv
 
 Retrieves a message from the socket.
-See [zmq_recv(3)](http://api.zeromq.org/zmq_recv.3.html).
+See [zmq_recv(3)](http://api.zeromq.org/zmq_recv.html).
 
 s:recv()  
 s:recv(flags)