Add README for the v2.3 branch

README.md

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+# About Netatalk
+[![Build Status](https://github.com/Netatalk/netatalk/actions/workflows/build.yml/badge.svg)](https://github.com/Netatalk/netatalk/actions/workflows/build.yml)
+[![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
+[<img src="https://sonarcloud.io/images/project_badges/sonarcloud-orange.svg" height="20" />](https://sonarcloud.io/summary/overall?id=Netatalk_netatalk&branch=branch-netatalk-2-3)
+
+Netatalk is a freely-available Open Source fileserver that implements the Apple Filing Protocol (AFP) 3.3 over TCP/IP and AppleTalk.
+AFP was the primary file sharing protocol for Apple Macintosh and Apple II computers from 1987 to 2013.
+A *NIX/*BSD system running Netatalk is capable of serving many Macintosh clients simultaneously as an AppleShare file server.
+
+# Why Should I Use Netatalk?
+If you're running a network of older Macs, in particular those running OS X 10.8 Mountain Lion or earlier, all the way back to Classic Mac OS,
+are well served by running a Netatalk AppleShare server. The latest macOS at the time of writing (macOS 13 Ventura) still comes with an AFP client,
+so Netatalk can act as a seamless bridge between new and old Macs.
+
+Compared to other Open Source file sharing solutions such as NFS or Samba, Netatalk delivers high transfer speeds and full integration
+of Classic Mac OS metadata (resource forks) as well as user authentication methods (UAMs) compatible with Classic Mac OS clients that don't support modern cryptography.
+
+Modern AFP features such as Bonjour, and Time Machine are also supported.
+
+# AppleTalk
+Netatalk v2 supports the legacy AppleTalk protocol, which means it can act as a bridge between older Macs, networked Apple IIs, and the very latest macOS systems. It is AFP 3.3 compliant with AFP 2 backwards compatibility.
+
+The included print server daemon can provide Apple II and Macintosh clients with the ability to print to AppleTalk-only printers. In addition, Netatalk is fully integrated with CUPS, allowing any networked Mac to discover and print to a CUPS/AirPrint compatible printer on the network.
+
+Additionally, Netatalk can be used to act as an AppleTalk router, providing both segmentation and zone names in traditional Macintosh networks. 
+
+# Contributions
+Bug reports and feature requests can be filed as GitHub issue ticket:
+
+https://github.com/Netatalk/netatalk/issues
+
+Before contributing code to the project, please read the guidelines in the wiki on how to prepare a PR that is likely to be accepted by the maintainers:
+
+https://github.com/Netatalk/netatalk/wiki/Developer-Notes
+
+PRs are automatically picked up by GitHub CI, which runs the builds, integration tests, as well as static analysis scan on SonarCloud.
+
+# Documentation
+The latest version of the Netatalk manual can be found at:
+
+https://netatalk.sourceforge.io/2.2/htmldocs/
+
+Each Netatalk component also has a *NIX man page which can be accessed on the command line, f.e. `man afpd`.
+
+# Wiki
+Collaborative articles can be found on the Netatalk wiki hosted on GitHub.
+
+Please feel free to edit existing and create new articles.
+
+https://github.com/Netatalk/netatalk/wiki
+
+# Mailing Lists
+Netatalk contributors and maintainers interact with each other primarily on the netatalk-admins and netatalk-devel mailing list.
+
+Subscribe and participate, or read archived discussion threads at:
+
+https://sourceforge.net/p/netatalk/mailman/
+
+# Website
+The Netatalk website is where new releases and other news about the project are posted.
+
+https://netatalk.sourceforge.io