diff --git a/.gitignore b/.gitignore
index 03e850e..fb546fe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+我是源仓维护者，可以编辑这个fork仓的「0303master」分支
 # Gradle files
 .gradle/
 build/
diff --git a/CANN.md b/CANN.md
index 066f28d..13d9652 100644
--- a/CANN.md
+++ b/CANN.md
@@ -1,3 +1,5 @@
+授权给源仓的维护者fork仓对应分支的编辑权限
+
 | 操作          | 写法 | 耗时                                                         |
 | -------------| ------------- | ------------------------------------------------------------ |
 | Scatter  |正确写法      | $(p-1)(\alpha+\frac np\beta)=(p-1)\alpha+\frac {p-1}p n\beta$  |