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diff --git a/README.md b/README.md
index 98335b9..dea4662 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,10 @@
 # lets-mdbook
+Build and push automatically with change history to mdbook.  
+  
+## build
+```bash
+./build.sh
+```
+
+## sample
+![https://haturatu.github.io/lets-mdbook/book/chapter_1.html](https://haturatu.github.io/lets-mdbook/book/chapter_1.html)