diff --git a/README.md b/README.md
index 8f516c0c467ffab82068774af17f30286aff75b6..55681c33f9b62910ceb3af92e111035eb43f143a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
-# xv6-loongarch
+# xv6-loongarch proj95 Project ID: 2855
+有关内存方面的文档请查看master分支中的doc_mem.pdf文件
 
 cross-tools can be found in : 
 https://github.com/loongson/build-tools/