Update 336._Palindrome_Pairs.md

Author: 0xkookoo

docs/Leetcode_Solutions/Python/336._Palindrome_Pairs.md

@@ -45,7 +45,7 @@ Explanation: The palindromes are ["battab","tabbat"]
 1. 如果前缀pref是回文且后缀suff的reverse也在words里面，那么suff[::-1]+(pref+suff)肯定是回文
 2. 如果后缀suff是回文且前缀pref的reverse也在words里面，那么(pref+suff)+pref[::-1]肯定是回文
 
-但是！！！我们不要忘记直接这样算会有duplicates，例如:
+***但是！！！我们不要忘记直接这样算会有duplicates，例如:***
 ```
 输入为["abcd","dcba"]