diff --git a/README.md b/README.md
index eaa1159..944c987 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 ## Intro
-> use rust implement minimum grep program.
\ No newline at end of file
+> use rust implement minimum grep cli program.
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index f4a375b..27ecb5d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -59,6 +59,7 @@ impl Config {
     /// # 示例
     ///
     /// ```
+    /// use minigrep_cli::Config; // 显式引入 Config 类型
     /// let args = vec!["program".to_string(), "query".to_string(), "file.txt".to_string()];
     /// let config = Config::build(args.into_iter());
     /// assert!(config.is_ok());