Merge pull request #439 from FoamyGuy/add_template_engine

adding template engine

Author: tannewt

.gitmodules

@@ -962,3 +962,6 @@
 [submodule "libraries/drivers/ad569x"]
 	path = libraries/drivers/ad569x
 	url = https://github.com/adafruit/Adafruit_CircuitPython_AD569x.git
+[submodule "libraries/helpers/templateengine"]
+	path = libraries/helpers/templateengine
+	url = https://github.com/adafruit/Adafruit_CircuitPython_TemplateEngine.git

docs/drivers.rst

@@ -125,6 +125,7 @@ Helpers for interfacing with the internet, including IoT protocols.
     NTP (Network time Protocol) <https://docs.circuitpython.org/projects/ntp/en/latest/>
     Requests <https://docs.circuitpython.org/projects/requests/en/latest/>
     OAuth2.0 <https://docs.circuitpython.org/projects/oauth2/en/latest/>
+    Template Engine <https://docs.circuitpython.org/projects/templateengine/en/latest/>
 
 Bluetooth Low Energy Helpers
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^