typo fixes from first session, thanks @codedragon

Author: cewing

resources/session01/socket_tools.py

@@ -18,4 +18,4 @@ def get_address_info(host, port):
         print('protocol: {}'.format(protocols[pro]))
         print('canonical name: {}'.format(nam))
         print('socket address: {}'.format(add))
-        print
+        print()

resources/session01/tasks.txt

@@ -48,6 +48,6 @@ Challenging:
   our echo server to handle more than one incoming connection in "parallel".
 
   Read the documentation about the `select` module
-  (http://docs.python.org/2/library/select.html) and attempt to write a second
+  (http://docs.python.org/3/library/select.html) and attempt to write a second
   version of the echo server that can handle multiple client connections in
   "parallel".  You do not need to invoke threading of any kind to do this.

source/presentations/session01.rst

@@ -1285,7 +1285,7 @@ To submit your homework:
 Going Further
 -------------
 
-In ``assignments/session01/tasks.txt`` you'll find a few extra problems to try.
+In ``resources/session01/tasks.txt`` you'll find a few extra problems to try.
 
 .. rst-class:: build
 .. container::