Update README.md

Author: Snailclimb

README.md

@@ -14,9 +14,11 @@
 > # 正文
 ## :coffee: Java
 -   ### Java基础
-    [Java基础知识学习与面试](https://github.com/Snailclimb/Java-Guide/blob/master/Java相关/Java基础知识.md)
+    [Java基础知识回顾](https://github.com/Snailclimb/Java-Guide/blob/master/Java相关/Java基础知识.md)
 
--  ### Java多线程系列
+-   ### Java集合框架
+    [Java集合框架常见面试题总结](https://github.com/Snailclimb/Java-Guide/blob/master/Java相关/Java基础知识.md)
+-  ### Java多线程
    [多线程系列学习与面试](https://github.com/Snailclimb/Java_Guide/blob/master/Java相关/多线程系列.md)