Update src/metadata.rs

Co-authored-by: konstin <[email protected]>

src/metadata.rs

@@ -79,7 +79,7 @@ fn path_to_content_type(path: &Path) -> String {
 }
 
 impl Metadata21 {
-    /// Merge metadata with pyproject.toml
+    /// Merge metadata with pyproject.toml, where pyproject.toml takes precedence
     ///
     /// manifest_path must be the directory, not the file
     fn merge_pyproject_toml(&mut self, manifest_path: impl AsRef<Path>) -> Result<()> {