update Project.toml

SciML · Jul 21, 2020 · a187b22 · a187b22
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commit a187b22
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diff --git a/Project.toml b/Project.toml
@@ -10,6 +10,7 @@ ModelingToolkit = "961ee093-0014-501f-94e3-6117800e7a78"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 
 [compat]
+Catlab = "0.7.2"
 Latexify = "0.13.5"
 MacroTools = "0.5"
 ModelingToolkit = "3.14"

diff --git a/src/graphs.jl b/src/graphs.jl
@@ -1,3 +1,5 @@
+# adapted from Petri.jl
+# https://github.com/mehalter/Petri.jl
 
 graph_attrs = Attributes(:rankdir=>"LR")
 node_attrs  = Attributes(:shape=>"plain", :style=>"filled", :color=>"white")