diff --git a/README.md b/README.md
index d68ea21..32be989 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@
 >
 > 3、转载须知：转载请注明GitHub出处，让我们一起维护一个良好的技术创作环境！
 >
-> 4、笔者会陆续更新，如果对你有所帮助，不妨点个star~。你的star是我创作的动力。
+> 4、如果你要提交 issue 或者 pr 的话建议到 [Github](https://github.com/youthlql/JavaYouth) 提交。
+>
+> 5、笔者会陆续更新，如果对你有所帮助，不妨[Github](https://github.com/youthlql/JavaYouth)点个star~。你的star是我创作的动力。
 
 
 
diff --git a/docs/Java/Basis/Java8_New_Features/Java8新特性.md b/docs/Java/Basis/Java8_New_Features/Java8新特性.md
index 6fce726..595881c 100644
--- a/docs/Java/Basis/Java8_New_Features/Java8新特性.md
+++ b/docs/Java/Basis/Java8_New_Features/Java8新特性.md
@@ -9,7 +9,7 @@ categories:
   - 新特性
 keywords: Java8，新特性，JDK8
 description: 详解JDK8出现的新特性。
-cover: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/Java_Basis/javabasis_logo.png'
+cover: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/Java_Basis/logo.png'
 top_img: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/blog/top_img.jpg'
 abbrlink: de3879ae
 date: 2020-10-19 22:15:58
diff --git a/docs/Java/Basis/keyAndDifficultPoints/Generic/泛型.md b/docs/Java/Basis/keyAndDifficultPoints/Generic/泛型.md
index 5886395..a193351 100644
--- a/docs/Java/Basis/keyAndDifficultPoints/Generic/泛型.md
+++ b/docs/Java/Basis/keyAndDifficultPoints/Generic/泛型.md
@@ -9,7 +9,7 @@ categories:
   - 新特性
 keywords: Java基础，泛型
 description: 万字长文详解Java泛型。
-cover: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/Java_Basis/javabasis_logo.png'
+cover: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/Java_Basis/logo.png'
 top_img: 'https://cdn.jsdelivr.net/gh/youthlql/lql_img/blog/top_img.jpg'
 abbrlink: de3879ae
 date: 2020-10-19 22:21:58