diff --git a/README.md b/README.md
index 83a1a3c..369f1b5 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,11 @@
-# cseu_datacenter
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+# CSEU Datacenter
+
+## What's this repo?
+
+Data and knowledge collection for CSEU
+
+## How to manage this repo
+
+Each maintainer should has his/her own branch,  
+and make commit to that branch before making PR to main branch.  
+
diff --git a/cook_sop/README.md b/cook_sop/README.md
new file mode 100644
index 0000000..515f1f5
--- /dev/null
+++ b/cook_sop/README.md
@@ -0,0 +1,16 @@
+# Cook SOP
+
+## Proper Folder Structure
+
+Each dish should be in separated folder.  
+You should write SOP in README.md file,  
+so others can directly read it on GitHub website.  
+
+```
+
+/Name of dish
+    | README.md
+    | image1.png
+    | .........
+
+```
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