docs: подробный README (разбор проекта при переносе в Gitea)

Старый README сохранён как README.upstream.md.

README.upstream.md

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+# xlxd-debian-installer
+This script simply runs through the official install instructions found [HERE](https://github.com/LX3JL/xlxd). The script will install XLX along with setting up the web dashboard to view real-time activity. After installing this you will have a private or public D-Star, DMR, and YSF XLX Reflector.
+
+At the start of 2020 a new version of XLX was released that allows for native C4FM connections. This means it's even simpler to run a multi-mode reflector. XLX now natively supports DMR, D-Star, and C4FM. C4FM and DMR do not require any transcoding hardware (AMBE) to work together. If you plan on using D-Star with any of the other modes, you will need hardware AMBE chips.
+
+
+### To Install:
+1. Have a fresh Debian computer ready and up to date.
+2. Have both a FQDN and 3 digit XLX number in mind before beginning.
+3. 
+```sh
+git clone https://github.com/viktor138irk/xlxd-debian-installer
+cd xlxd-debian-installer
+./xlxd-debian-installer.sh
+```
+## How to find what reflectors are available
+Find a current active reflector dashboard, for example, https://xlx.n5amd.com/index.php?show=reflectors and you will see the gaps in reflector numbers in the list. Those reflector numbers not listed are available. 
+
+### To interact with xlxd after installation:
+```sh
+systemctl start|stop|status|restart xlxd
+```
+ - Installs to /xlxd
+ - Logs are in /var/log/messages and *'systemctl status xlxd'*
+ - Main config file is /var/www/xlxd/pgs/config.inc.php
+ - Be sure to restart xlxd after each config change *'systemctl restart xlxd'*
+
+**For more information, please visit:**
+
+https://n5amd.com/digital-radio-how-tos/create-xlx-xrf-d-star-reflector/