diff --git a/book.toml b/book.toml
index d35d560..40a74c8 100644
--- a/book.toml
+++ b/book.toml
@@ -19,4 +19,5 @@ cname = "aigc.phodal.com"
 # cargo install mdbook-pdf
 #[output.pdf]
 
+# cargo install --path .
 #[output.count]