wok diff graphviz/description.txt @ rev 23621

updated ruby and ruby-dev (2.6.4 -> 2.7.1)
author: Hans-G?nter Theisgen
date: Tue Apr 14 15:51:31 2020 +0100 (2020-04-14)
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/graphviz/description.txt	Tue Apr 14 15:51:31 2020 +0100
     1.3 @@ -0,0 +1,5 @@
     1.4 +Graphviz is open source graph visualization software. Graph visualization is a 
     1.5 +way of representing structural information as diagrams of abstract graphs and 
     1.6 +networks. It has important applications in networking, bioinformatics, software 
     1.7 +engineering, database and web design, machine learning, and in visual interfaces
     1.8 +for other technical domains.