Add docs directory

LICENSE

@@ -1,4 +1,4 @@
-Copyright 2024 skyizwhite
+Copyright 2024 - present, skyizwhite
 Copyright 2021 - present, Yusuke Wada and Hono contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

README.md

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 # lack-mw
 
 Middleware collection for [Lack](https://github.com/fukamachi/lack).
-
 These middlewares were ported from [Hono](https://github.com/honojs/hono).
 
 ## Middlewares
 
-- **trailing-slash**  
+- [trailing-slash](/docs/trailing-slash.md)
-  Handles trailing slashes in URLs for GET requests.  
-  If the requested resource isn’t found, it redirects to the correct URL accordingly.
-  - `*append-trailing-slash*`  
-    Redirects to the URL **with** a trailing slash.
-  - `*trim-trailing-slash*`  
-    Redirects to the URL **without** a trailing slash.
 - Coming soon...
 
 ## License
 
 Licensed under the MIT License.
 
-© 2024 skyizwhite
+© 2024 - present, skyizwhite
 
 © 2021 - present, Yusuke Wada and Hono contributors

docs/trailing-slash.md

@@ -0,0 +1,53 @@
+# trailing-slash middleware
+
+This middleware handles Trailing Slash in the URL on a GET request.
+
+`*append-trailing-slash*` redirects the URL to which it added the Trailing Slash if the content was not found. Also, `*trim-trailing-slash*` will remove the Trailing Slash.
+
+## Usage
+
+Example of redirecting a GET request of `/about/me` to `/about/me/`.
+
+```lisp
+(defpackage #:app/main
+  (:use #:cl)
+  (:import-from #:ningle)
+  (:import-from #:lack)
+  (:import-from #:lack-mw
+                #:*append-trailing-slash*))
+(in-package #:app/main)
+
+(defparameter *raw-app* (make-instance 'ningle:app))
+(setf (ningle:route *raw-app* "/about/me/")
+      "With Trailing Slash")
+
+(defparameter *app*
+  (lack:builder
+    *append-trailing-slash*
+    *raw-app*))
+```
+
+Example of redirecting a GET request of `/about/me/` to `/about/me`.
+
+```lisp
+(defpackage #:app/main
+  (:use #:cl)
+  (:import-from #:ningle)
+  (:import-from #:lack)
+  (:import-from #:lack-mw
+                #:*trim-trailing-slash*))
+(in-package #:app/main)
+
+(defparameter *raw-app* (make-instance 'ningle:app))
+(setf (ningle:route *raw-app* "/about/me")
+      "Without Trailing Slash")
+
+(defparameter *app*
+  (lack:builder
+    *trim-trailing-slash*
+    *raw-app*))
+```
+
+## Note
+
+It will be enabled when the request method is GET and the response status is `404`.