diff --git a/README.md b/README.md
index 125e771..feef8db 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,9 @@ Using mdbook, https://github.com/azerupi/mdBook
 
 Install mdbook, see https://github.com/azerupi/mdBook, then
 
-    > mbbook serve
+    > mdbook serve
+
+Go to localhost:3000 with your \$BROWSER, enjoy.
 
 Go to localhost:3000 with your $BROWSER, enjoy.