small change to doc

Michele De Vita · Michele De Vita · commit d4bd356330c9 · 2017-08-14T17:40:59.000+02:00
diff --git a/docs/Minumum spanning tree.rst b/docs/Minumum spanning tree.rst
@@ -3,7 +3,7 @@ Minimum spanning tree
 =======================
 
 
-Given a weighted connected graph (a graph with weights on the edges), the minimum spanning tree is a spanning tree that
+Given a weighted connected undirected graph (weighted = graph with weights on the edges), the minimum spanning tree is a spanning tree that
 minimize the weights of the edges.
 
 
