chore: Migrate from GitHub to Forgejo

- Update repository URL to kitux.de/forgejo/dschlueter/ntu
- Replace GitHub badges with simple repository link
- Update email addresses: dieter.schlueter@linix.de -> dschlueter@kitux.de
- Update all installation and clone instructions
- Update bug report and documentation URLs in manpage
- Mark GitHub Actions workflows as legacy

README.md

@@ -1,12 +1,11 @@
 # NameToUnix
 
-[![CI](https://github.com/jamulix/NameToUnix/workflows/CI/badge.svg)](https://github.com/jamulix/NameToUnix/actions)
-[![Release](https://github.com/jamulix/NameToUnix/workflows/Release/badge.svg)](https://github.com/jamulix/NameToUnix/releases)
-[![Version](https://img.shields.io/github/v/release/jamulix/NameToUnix)](https://github.com/jamulix/NameToUnix/releases)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 **Filename Repair Tool for Linux** · Binary: `ntu`
 
+🔗 Repository: [kitux.de/forgejo/dschlueter/ntu](https://kitux.de/forgejo/dschlueter/ntu)
+
 (german and english)
 
 A powerful command line tool for cleaning up file names according to Linux conventions.
@@ -25,7 +24,7 @@ Ich benutze ein ähnliches Programm - ein Perl-Skript - seit ca. 15 Jahren. Es h
 
 Dies ist mein erstes Programm in Rust. (Bitte seid gnädig.)
 
-(c) 2025 Dieter Schlüter <dieter.schlueter@linix.de>
+(c) 2025 Dieter Schlüter <dschlueter@kitux.de>
 
 ## ⚠️ BREAKING CHANGE in v1.0.0
 
@@ -80,36 +79,21 @@ ntu -L -v
 
 ## Installation
 
-### Option 1: Pre-built Binary (Recommended)
+### Option 1: Pre-built Binary
 
-Download the latest release for your platform from [GitHub Releases](https://github.com/jamulix/NameToUnix/releases):
+Pre-built binaries are available from [Forgejo Releases](https://kitux.de/forgejo/dschlueter/ntu/releases).
 
-```bash
-# Linux x86_64
-wget https://github.com/jamulix/NameToUnix/releases/latest/download/ntu-linux-x86_64.tar.gz
-tar xzf ntu-linux-x86_64.tar.gz
-sudo mv ntu /usr/local/bin/
+Download and extract the appropriate binary for your platform, then move it to `/usr/local/bin/`.
 
-# macOS Intel
-wget https://github.com/jamulix/NameToUnix/releases/latest/download/ntu-macos-x86_64.tar.gz
-tar xzf ntu-macos-x86_64.tar.gz
-sudo mv ntu /usr/local/bin/
-
-# macOS Apple Silicon (M1/M2)
-wget https://github.com/jamulix/NameToUnix/releases/latest/download/ntu-macos-arm64.tar.gz
-tar xzf ntu-macos-arm64.tar.gz
-sudo mv ntu /usr/local/bin/
-```
-
-### Option 2: Build from Source
+### Option 2: Build from Source (Recommended)
 
 Die ausführbare Datei wird unter `target/release/ntu` erstellt. Du solltest sie mit 'sudo cp target/release/ntu /usr/local/bin/' kopieren. Sie ist dann für alle User verfügbar. Denke daran, die Konfiguationsdatei (s. u.) ebenfalls zu kopieren. Sie kann für jeden User individuell angepasst werden, wenn sie im home-Verzeichnis des Users liegt.
 
 The executable file is created under `target/release/ntu`. You should copy it with 'sudo cp target/release/ntu /usr/local/bin/'. It is then available for all users. Remember to copy the configuration file (see below) as well. It can be customized for each user individually if it is located in the user's home directory.
 
 ```bash
-git clone https://github.com/jamulix/NameToUnix.git       # Download repository
-cd NameToUnix                                             # Change to download directory
+git clone https://kitux.de/forgejo/dschlueter/ntu.git    # Download repository
+cd ntu                                                    # Change to download directory
 cargo build --release                                     # Build binary
 sudo cp target/release/ntu /usr/local/bin/                # copy binary to local bin directory