diff --git a/README.md b/README.md
index 6bfc91a..c089ab1 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
+
+# Translation project of uCore documents, from HTML generated from DOCS, to MARKDOWN
+
+## Process
+
 - Lab 0: Finished by objectkuan
 - Lab 1: In process by objectkuan
 - Lab 2: Not started
@@ -7,3 +12,9 @@
 - Lab 6: Not started
 - Lab 7: Not started
 - Lab 8: Not started
+
+## Caution
+
+- DO NOT use 1. 2. 3. and - - - alternately. They will interrupt each other. Instead using (1) (2) (3) and [1] [2] [3] is OK
+- Now each lab is finished with the image dir's name changed by removing the ".files" suffix.
+- Fisrt copy the content of one lab from the html file to a md file, and add formatiting.