Add Pi Temperature Exporter

Author: s-nagaev

README.md

@@ -115,6 +115,7 @@ The complete collection of (consumer) Raspberry Pi models consist of:
 - [ndm](https://github.com/gitbls/ndm) - Command line tool to easily manage DNS and DHCP servers.
 - [OpenVPN-Setup](https://github.com/StarshipEngineer/OpenVPN-Setup) - Shell script to set up Raspberry Pi as an OpenVPN server.
 - [Orangetool](https://github.com/Moduland/Orangetool) - Control functions for Single-Board computers in Python.
+- [Pi Temperature Exporter](https://github.com/s-nagaev/pi-temperature-exporter) - a CPU and GPU temperature exporter for Prometheus consumption.
 - [pi-gen](https://github.com/RPi-Distro/pi-gen) - Tool used to create the raspberrypi.org Raspbian images. This can be used to create your own custom images with specific packages installed, etc.
 - [Pieman](https://github.com/tolstoyevsky/pieman) - Script for creating custom images based on Raspbian, Devuan, Ubuntu and Alpine Linux.
 - [Pimod](https://github.com/Nature40/pimod) - Reconfigure Raspberry Pi images with an easy, Docker-like configuration file.