Added user projects section to README

Author: Gadgetoid

README.md

@@ -54,6 +54,12 @@ And install additional dependencies:
 sudo apt install python-numpy python-smbus python-pil python-setuptools
 ```
 
+## Alternate Software & User Projects
+
+* enviro monitor - https://github.com/roscoe81/enviro-monitor
+* mqtt-all - https://github.com/robmarkcole/rpi-enviro-mqtt - now upstream: [see examples/mqtt-all.py](examples/mqtt-all.py)
+* adafruit_io.py - https://github.com/dedSyn4ps3/enviroplus-python/blob/master/examples/adafruit_io.py - uses Adafruit Blinka and BME280 libraries to publish to Adafruit IO
+
 ## Help & Support
 
 * GPIO Pinout - https://pinout.xyz/pinout/enviro_plus