Update README.md

e6567a6b · Arnaud Blanchard · 3b1b36a2 · e6567a6b
Commit e6567a6b authored Apr 22, 2018 by Arnaud Blanchard
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 Gnuplot
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-Open a window and nicely graph the content of a blc_channel.
+Open a window and nicely graph the content of a blc_channel. 
+
+We use gnuplot over other tools such as mathplotlib because gnuplot is more easily available and it is much (~100 times) faster.

 Install
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