Merge pull request #251 from kattni/pm25-ahtx0-add

Add PM25 and AHTx0 to bundle.

Author: ladyada

.gitmodules

@@ -688,3 +688,9 @@
 [submodule "libraries/drivers/icm20x"]
 	path = libraries/drivers/icm20x
 	url = https://github.com/adafruit/Adafruit_CircuitPython_ICM20X.git
+[submodule "libraries/drivers/pm25"]
+	path = libraries/drivers/pm25
+	url = https://github.com/adafruit/Adafruit_CircuitPython_PM25.git
+[submodule "libraries/drivers/ahtx0"]
+	path = libraries/drivers/ahtx0
+	url = https://github.com/adafruit/Adafruit_CircuitPython_AHTx0.git

docs/drivers.rst

@@ -324,6 +324,7 @@ equivalent carbon dioxide (``eco2`` / ``eCO2``), and total volatile organic comp
 
     AM2320 Temperature and Humidity <https://circuitpython.readthedocs.io/projects/am2320/en/latest/>
     ADT7410 High Accuracy Temperature Sensor <https://circuitpython.readthedocs.io/projects/adt7410/en/latest/>
+    AHTx0 Tempertaure and Humidity Sensor <https://circuitpython.readthedocs.io/projects/ahtx0/en/latest/>
     BME280 Temperature, Humidity and Pressure <https://circuitpython.readthedocs.io/projects/bme280/en/latest/>
     BME680 Temperature, Humidity, Pressure and Gas <https://circuitpython.readthedocs.io/projects/bme680/en/latest/>
     BMP280 Barometric Pressure and Altitude <https://circuitpython.readthedocs.io/projects/bmp280/en/latest/>
@@ -346,6 +347,7 @@ equivalent carbon dioxide (``eco2`` / ``eCO2``), and total volatile organic comp
     MPL3115A2 Barometric Pressure, Altitude and Temperature Sensor <https://circuitpython.readthedocs.io/projects/mpl3115a2/en/latest/>
     MPRLS Ported Absolute Pressure <https://circuitpython.readthedocs.io/projects/mprls/en/latest/>
     PCT2075 Temperature Sensor <https://circuitpython.readthedocs.io/projects/pct2075/en/latest/>
+    PM25 Air Quality Sensor <https://circuitpython.readthedocs.io/projects/pm25/en/latest/>
     SGP30 Air Quality <https://circuitpython.readthedocs.io/projects/sgp30/en/latest/>
     SHT31-D Temperature and Humidity <https://circuitpython.readthedocs.io/projects/sht31d/en/latest/>
     Si7021 Temperature and Humidity <https://circuitpython.readthedocs.io/projects/si7021/en/latest/>