Update CHANGELOG for middleware chain inspection

CHANGELOG.md

@@ -26,6 +26,12 @@ We use [Break Versioning][breakver]. The version numbers follow a `<major>.<mino
 
 * Automatically coerce Sieppari-style 1-arity `:error` handlers into Pedestal-style 2-arity `:error` handlers. Thanks to [Mathieu MARCHANDISE](https://github.com/vielmath).
 
+### `reitit-middleware`
+
+* `reitit.ring.middleware.dev/print-request-diffs` prints also response diffs.
+
+<img src="https://user-images.githubusercontent.com/567532/56895987-3e54ea80-6a93-11e9-80ee-9ba6f8896db6.png">
+
 ## 0.3.1 (2019-03-18)
 
 * Recompiled with Java8 as target, fixes [#241](https://github.com/metosin/reitit/issues/241).

doc/ring/default_middleware.md

@@ -10,7 +10,7 @@ Any Ring middleware can be used with `reitit-ring`, but using data-driven middle
 * [Exception Handling](#exception-handling)
 * [Content Negotiation](#content-negotiation)
 * [Multipart Request Handling](#multipart-request-handling)
-* [Inspecting Requests](#inspecting-requests)
+* [Inspecting Middleware Chain](#inspecting-middleware-chain)
 
 ## Parameters Handling
 
@@ -226,9 +226,9 @@ Expected route data:
 * `multipart/multipart-middleware` a preconfigured middleware for multipart handling
 * `multipart/create-multipart-middleware` to generate with custom configuration
 
-## Inspecting Requests
+## Inspecting Middleware Chain
 
-`reitit.ring.middleware.dev/print-request-diffs` is a [middleware chain transforming function](transforming_middleware_chain.md). It prints a request diff between each middleware. To use it, add the following router option:
+`reitit.ring.middleware.dev/print-request-diffs` is a [middleware chain transforming function](transforming_middleware_chain.md). It prints a request and response diff between each middleware. To use it, add the following router option:
 
 ```clj
 :reitit.middleware/transform reitit.ring.middleware.dev/print-request-diffs