Forgot source for the graph of data sources at the begining of the errors...

Forgot source for the graph of data sources at the begining of the errors section (required by c77dce69 too)

src/errors.gv

+digraph g {
+  dpi=400;
+  subgraph cluster0 {
+      label="sources";
+      style="dashed";
+      E [label="Encyclopédistes"];
+      EN [label="ENCCRE"];
+  }
+  subgraph cluster1 {
+      label="évalué";
+      style="dashed";
+      M [label="Classifieur\nautomatique"];
+  }
+  subgraph {
+      rank="same";
+      T [label=<<TABLE CELLBORDER="0" CELLSPACING="0">
+                  <TR><TD BGCOLOR="palegreen">Géographie</TD></TR><HR/>
+                  <TR><TD>Commerce</TD></TR>
+                </TABLE>>
+         shape=none];
+      P [label=<<TABLE CELLBORDER="0" CELLSPACING="0">
+                  <TR><TD BGCOLOR="turquoise1">Commerce</TD></TR><HR/>
+                  <TR><TD>Géographie</TD></TR><HR/>
+                  <TR><TD>Histoire</TD></TR><HR/>
+                  <TR><TD>…</TD></TR><HR/>
+                  <TR><TD>Musique</TD></TR>
+                </TABLE>>
+         shape=none];
+      T -> P [dir="both" minlen=3 arrowhead="vee" arrowtail="vee" label="vs."];
+  }
+  E -> EN [label=" (?)"];
+  EN -> T;
+  M -> P;
+}