Update docs/search/opt.md

Co-Authored-By: ouuan <1609483441@qq.com>

diff --git a/docs/search/opt.md b/docs/search/opt.md
index d217260..431b90a 100644 (file)
--- a/docs/search/opt.md
+++ b/docs/search/opt.md
@@ -124,7 +124,7 @@ void dfs(传入数值) {
     9 1 7 8 9
     ```
 
-    输出样例：
+    **输出样例**
 
     ```text
     5