Update _coverpage.md

Snailclimb · Snailclimb · commit 1013e57fee2a · 2019-10-02T23:12:22.000+08:00
diff --git a/docs/_coverpage.md b/docs/_coverpage.md
@@ -3,6 +3,7 @@
 </p>
 
 <h1 align="center">Java 学习/面试指南</h1>
+
 [常用资源](https://shimo.im/docs/MuiACIg1HlYfVxrj/)
 [GitHub](<https://github.com/Snailclimb/JavaGuide>)
 [开始阅读](#java)
