chore: release v0.1.1

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "optimizer"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2024"
 rust-version = "1.88"
 license = "MIT"

src/study.rs

@@ -1043,7 +1043,7 @@ impl Study<f64> {
     ///         let x = trial.suggest_float("x", -10.0, 10.0)?;
     ///         // Async objective function (e.g., network request)
     ///         let value = x * x;
-    ///         Ok::<_, optimize::TpeError>((trial, value))
+    ///         Ok::<_, optimizer::TpeError>((trial, value))
     ///     })
     ///     .await?;
     ///