update readme.md

fuli · fuli · commit 80e002232036 · 2013-08-26T10:00:13.000+08:00
diff --git a/README.md b/README.md
@@ -61,6 +61,7 @@
 
     Graph data structure
     Prim's minimum spanning tree
+	Kruskal MST
     Directed/Undirected graph ops
     Breadth First Search
     Depth First Search
