Fix doc style

crates/bevy_pbr/src/lib.rs

@@ -16,7 +16,7 @@ pub mod wireframe;
 /// Expect bugs, missing features, compatibility issues, low performance, and/or future breaking changes.
 #[cfg(feature = "meshlet")]
 pub mod experimental {
-    //! Render high-poly 3d meshes using an efficient GPU-driven method. See [`MeshletPlugin`] and [`MeshletMesh`] for details.
+    /// Render high-poly 3d meshes using an efficient GPU-driven method. See [`MeshletPlugin`] and [`MeshletMesh`] for details.
     pub mod meshlet {
         pub use crate::meshlet::*;
     }