Update README.md

Author: Capella87

README.md

@@ -1,10 +1,13 @@
 # fnorm - FixNormalization
 Fix Unicode normalization in filenames.
 
+> [!IMPORTANT]
+> This software is in development. It may contains unknown or potential bugs and unexpected behaviors. If you find or encounter those, Open an issue at this repository and describe it.
+
 ## Introduction
-fnorm(EEF-NOHRM) is a simple desktop application to fix Unicode normalization in filenames. From Form D to Form C, and vice versa.
+**fnorm**(EEF-NOHRM) is a simple desktop application to fix Unicode normalization in filenames. From Form D to Form C, and vice versa.
 
-It is especially useful when you met nasty messed filename including characters which can be decomposed after moving files from macOS (or Darwin based-OSes) to Windows or Linux.
+It is especially useful when you met <ins>a nasty messed filename</ins> including characters which can be decomposed after moving files from macOS (or Darwin based-OSes) to Windows or Linux.
 (e.g. 한글 -> ᄒ​ᅡ​ᆫᄀ​ᅳ​ᆯ). In particular in Hangul, it has been considered really notorious problem among people who need to communicate files with different OSes.
 
 This problem is derived from discrepancy in processing Unicode characters between Darwin (**macOS**, iPadOS, iOS, tvOS, watchOS, visionOS) and others, because HFS+, a filesystem that once Apple had been applied in their OSes, uses Normalization D to save filenames in UTF-16.
@@ -19,15 +22,22 @@ That's why I made this humble tool.
 ## Installation
 
 ```fnorm``` supports Windows, and Linux with x64 and ARM64 architectures. macOS will be supported soon.
-
-### Requirements
-* [.NET 9](https://dotnet.microsoft.com/en-us/download/dotnet/9.0) Runtime
-
 You can install ```fnorm``` in various ways.
 
 Visit [the release page](https://github.com/Capella87/FixNormalization/releases) and download the latest version of fnorm. See assets.
 Or you can use a package manager shown below.
 
+### Requirements
+* **[.NET 9](https://dotnet.microsoft.com/en-us/download/dotnet/9.0)** Runtime [Mandatory]
+
+Although the program is automatically setting console output to UTF-8, you may have to enable Windows option, '**Beta: Use Unicode UTF-8 for worldwide language support**' (Beta: 세계 언어 지원을 위해 Unicode UTF-8 사용) in Region settings to see Unicode characters correctly in Windows console environment.
+That's because Windows still uses MBCS(Multi-Byte Character Set) as a default encoding in system for legacy, (e.g. CP949 for Korean) and it may causes problem in processing and showing latest Unicode characters right.
+
+But this option can be problematic in some programs which forces or are sticked to specific encoding. (e.g. MapleStory, Fallout: New Vegas)
+You can also make a workaround by type ```chcp 65001``` to set UTF-8 encoding in the console section prior to executing this program.
+
+I recommend to run the program in Windows Terminal with PowerShell 7.
+
 ### Scoop
 
 You can easily install fnorm in Windows with [Scoop](https://scoop.sh) and my bucket, [capella-bucket](https://github.com/Capella87/capella-bucket).
@@ -72,6 +82,10 @@ Convert filenames to follow Normalization Form C. If you don't specify ```--form
 
 Convert filenames to follow Normalization Form D. In general cases you don't have to care about this option.
 
+### ```--recursive``` or ```-r```
+
+Enable recursive search in directories.
+
 ### Example
 
 ```shell
@@ -82,3 +96,5 @@ fnorm fix C:\\Users\user\Desktop C:\\Users\user\Documents --form nfc
 This software is distributed under MIT License. I don't have any responsibility for any damage caused by using this software.
 
 ---
+
+Copyright (c) 2024-2025 **Capella87**. Distributed under MIT License.