diff --git a/.gitattributes b/.gitattributes
index fcadb2c..90eaec1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,3 @@
 * text eol=lf
+
+*.png binary
diff --git a/README.md b/README.md
index 0f00c9c..b4e1452 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@
 * MIT-Licensed, 2018-01-07, ed @ irc.rizon.net
 * https://github.com/9001/r0c
 
+![screenshot of telnet connected to a r0c server](doc/r0c.png)
+
 ## features
 
 * tries to be irssi
diff --git a/doc/r0c.png b/doc/r0c.png
new file mode 100644
index 0000000..009bbba
Binary files /dev/null and b/doc/r0c.png differ
diff --git a/r0c/config.py b/r0c/config.py
index 0c3e90a..c57a4d8 100644
--- a/r0c/config.py
+++ b/r0c/config.py
@@ -2,29 +2,38 @@
 if __name__ == '__main__':
 	raise RuntimeError('\r\n{0}\r\n\r\n  this file is part of retr0chat.\r\n  enter the parent folder of this file and run:\r\n\r\n    python -m r0c <telnetPort> <netcatPort>\r\n\r\n{0}'.format('*'*72))
 
+BUILD_DATE = '2018-01-16'  # felt like a good idea at the time
+
 # two example values are listed for each config attribute;
 # the first for debug purposes, the second for regular use
 
+# show negotiations etc
 DBG = True
 DBG = False
 
+# show all traffic from clients
 HEXDUMP_IN = True
 HEXDUMP_IN = False
 
+# show all traffic to clients
 HEXDUMP_OUT = True
 HEXDUMP_OUT = False
 
+# filter packets larger than N bytes from being hexdumped
 HEXDUMP_TRUNC = 65535
 HEXDUMP_TRUNC = 128
 
+# set true for a really bad "slow network" simulation
 SLOW_MOTION_TX = True
 SLOW_MOTION_TX = False
 
+# force clients into linemode (to debug linemode UI)
 FORCE_LINEMODE = True
 FORCE_LINEMODE = False
 
+# dump statistics every 2 seconds
 BENCHMARK = True
 #BENCHMARK = False
 
+# width of the hexdump, in bytes per line
 HEX_WIDTH = 16
-
diff --git a/r0c/user.py b/r0c/user.py
index e824aae..eeecd02 100644
--- a/r0c/user.py
+++ b/r0c/user.py
@@ -99,7 +99,7 @@ class User(object):
   `1;30m\\ `0;36m|    `1m\\_/  `0;36m\\__ `1;30m/     `0;36m------b. build_date `0m
 """
 
-		text = text.replace(u'`', u'\033[').replace('build_date', '2018-01-15')
+		text = text.replace(u'`', u'\033[').replace('build_date', BUILD_DATE)
 
 		text += u"""
 Useful commands: