[wiki] [sites] Use only one image for the color space demo || FRIGN

[git]

commit 577dada496c09c0754e69e7cbccf17f6ad39999f
Author: FRIGN <d...@frign.de>
Date:   Fri Sep 30 11:20:52 2016 +0200

    Use only one image for the color space demo
    
    And add a note on when it can fail.

diff --git a/suckless.org/conferences/2016.md b/suckless.org/conferences/2016.md
index 67d6ed1..0b38c1f 100644
--- a/suckless.org/conferences/2016.md
+++ b/suckless.org/conferences/2016.md
@@ -84,9 +84,11 @@ Saturday, 2016-09-24
 > Are you already affected by the limitations of sRGB. Below you can
   see two saturated RGB triplets; the one on the left gives you the
   saturated reds, greens and blues of sRGB, the one on the right shows
-  you the saturated reds, greens and blues of your monitor.
+  you the saturated reds, greens and blues of your monitor. If you only
+  see continuous lines, this means that either your monitor is pretty old
+  or you're not working within a color managed environment.
 
-->![saturated RGB in sRGB](rgb-srgb.png)![saturated RGB of your 
monitor](rgb-prophoto.png)<-
+->![saturated RGB in sRGB and that of your monitor](cs-demo.png)<-
 
 <video width="600" height="338" controls="" style="display:block;margin:0 
auto" 
poster="http://dl.sta.li/slcon/2016/slcon-2016-04-lhunhold-farbfeld_and_color_spaces.png";>
         <source 
src="http://dl.sta.li/slcon/2016/slcon-2016-04-lhunhold-farbfeld_and_color_spaces.webm";
 type="video/webm">
diff --git a/suckless.org/conferences/cs-demo.png 
b/suckless.org/conferences/cs-demo.png
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diff --git a/suckless.org/conferences/rgb-prophoto.png 
b/suckless.org/conferences/rgb-prophoto.png
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diff --git a/suckless.org/conferences/rgb-srgb.png 
b/suckless.org/conferences/rgb-srgb.png
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