more doc.

web/src/middleware/compress.rs

@@ -9,6 +9,7 @@ use crate::service::Service;
 /// # Type mutation
 /// `Compress` would mutate response body type from `B` to `Coder<B>`. Service enclosed
 /// by it must be able to handle it's mutation or utilize [TypeEraser] to erase the mutation.
+/// For more explanation please reference [type mutation](crate::middleware#type-mutation).
 ///
 /// [WebRequest]: crate::http::WebRequest
 /// [WebResponse]: crate::http::WebResponse

web/src/middleware/decompress.rs

@@ -9,6 +9,7 @@ use crate::service::Service;
 /// # Type mutation
 /// `Decompress` would mutate request body type from `B` to `Coder<B>`. Service enclosed
 /// by it must be able to handle it's mutation or utilize [TypeEraser] to erase the mutation.
+/// For more explanation please reference [type mutation](crate::middleware#type-mutation).
 ///
 /// [WebContext]: crate::WebContext
 /// [TypeEraser]: crate::middleware::eraser::TypeEraser

web/src/middleware/limit.rs

@@ -23,10 +23,11 @@ use crate::{
 /// General purposed limitation middleware. Limiting request/response body size etc.
 ///
 /// # Type mutation
-/// `Limit` would mutate request body type from `B` to `Limit<B>`. Service enclosed
-/// by it must be able to handle it's mutation or utilize [TypeEraser] to erase the mutation.
+/// [`Limit`] would mutate request body type from `B` to [`Limit<B>`]. Service enclosed by it must be
+/// able to handle it's mutation or utilize [`TypeEraser`] to erase the mutation.
+/// For more explanation please reference [`type mutation`](crate::middleware#type-mutation).
 ///
-/// [TypeEraser]: crate::middleware::eraser::TypeEraser
+/// [`TypeEraser`]: crate::middleware::eraser::TypeEraser
 #[derive(Copy, Clone)]
 pub struct Limit {
     request_body_size: usize,