diff --git a/README.md b/README.md
index 0ec7f0f..ecbdcaf 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,27 @@ NiX-Joy 的技术分享资料
 <details>
     <summary>2019</summary>
     <blockquote>
+    <details>
+        <summary>01</summary>
+        <blockquote>
+            <a href="java/synchronized的升级/synchronized.md">synchronied的升级</a>
+        </blockquote>
+    </details>
+    <details>
+        <summary>02</summary>
+        <blockquote>
+            <a href="Search\Elasticsearch\elasticsearch · 入门.md">elasticsearch入门</a>
+        </blockquote>
+    </details> 
+	     <details>
+        <summary>03</summary>
+        <blockquote>
+            <a href="java/布隆过滤器/布隆过滤器.md">布隆过滤器</a>
+        </blockquote>
+        <blockquote>
+            <a href="database/数据库索引/index.md">数据库索引</a>
+        </blockquote>
+    </details> 
       <details>
           <summary>01</summary>
           <blockquote>
diff --git a/algorithm/KMP/KMP.md b/algorithm/KMP/KMP.md
index 329d027..ca822db 100644
--- a/algorithm/KMP/KMP.md
+++ b/algorithm/KMP/KMP.md
@@ -23,4 +23,6 @@ ps:next数组的起始下标是从1开始
 
 * 当next[k] = n代表前缀与后缀的字符串匹配而且长为n。
 
-* 当next[k] = 1代表接下下来的匹配需要子串的首字符与父串的当前匹配位置匹配。
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+* 当next[k] = 1代表接下下来的匹配需要子串的首字符与父串的当前匹配位置匹配。
+
+[kmp代码实现](https://github.com/forestMr/forest-algorithm/tree/master/src/com/company/algorithm/kmp)
\ No newline at end of file