fix links

Co-Authored-By: ouuan <y___o___u@126.com>

diff --git a/docs/graph/mst.md b/docs/graph/mst.md
index f5400b0..79e8bd8 100644 (file)
--- a/docs/graph/mst.md
+++ b/docs/graph/mst.md
@@ -479,7 +479,7 @@ int main() {
 
 例如下图：
 
- [](./images/mst5.png) 
+ ![](./images/mst5.png) 
 
 1 到 4 的最小瓶颈路显然有以下两条：1-2-3-4。1-3-4。