Rename functions to modules. Update README

README.md

@@ -10,7 +10,7 @@ This is my [Home Assistant](https://home-assistant.io/) configuration :)
 
 [Ping me](#meta) with any questions.
 
-### Hardware
+## Hardware
 
 **Servers:**
 
@@ -42,6 +42,19 @@ This is my [Home Assistant](https://home-assistant.io/) configuration :)
 - [Philips AC2729 Air Purifier and Humidifier](https://www.p4c.philips.com/cgi-bin/cpindex.pl?scy=EE&slg=EN&ctn=AC2729/10)
 - Amcrest Security Camera
 
+## Configuration
+
+I'm using [Home Assistant Packages](https://www.home-assistant.io/docs/configuration/packages/) to
+keep everything organized and grouped by different functionalities.
+
+- `devices` - configuration and behavior for specific devices
+- `modules` - major functions / behaviors are split into modules
+- `modes` - entering and exiting house modes
+- `routines` - definitions of automated routines - e.g. Coming Home or Waking Up
+- `sensors` - configuring sensors the house can use
+
+The `speech` module uses [partial templates](https://github.com/GeorgeSG/sarah/tree/master/templates/partials) to generate more complex messages.
+
 ## Screenshots
 
 ### Home