diff --git a/README.md b/README.md
index 7afaabf..cf972a3 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,16 @@ This library helps make writing firmware for the [Sitka Instruments Gravity](htt
 
 The latest releases of all Sitka Instruments Gravity firmware builds can be found on the [Updater](https://sitkainstruments.com/gravity/updater/) page. You can use this page to flash the latest build directly to the Arduino Nano on the back of your module.
 
+## Project Code Layout
+
+* [`src/`](src/) - **libGravity**: This is the hardware abstraction library used to simplify the creation of new Gravity module firmware by providing common reusable wrappers around the module peripherials like [DigitalOutput](src/digital_output.h#L18) providing methods like [`Update(uint8_t state)`](src/digital_output.h#L45) which allow you to set that output channel voltage high or low, and common module behavior like [Clock](src/clock.h#L30) which provides handlers like [AttachExtHandler](src/clock.h#L69) which takes a callback function to handle external clock tick behavior when receiving clock trigger.
+
+* [`firmware/Gravity`](firmware/Gravity/) - **Alt Gravity**: This is the implementation of the default 6-channel trigger/gate clock modulation firmware. This is a full rewrite of the original firmware designed to use `libGravity` with a focus on open source friendlines.
+
+* `firmware/GridSeq` - **GridSeq**:  Comming Soon.
+
+* [`examples/skeleton`](examples/skeleton/skeleton.ino) - **Skeleton**: This is the bare bones scaffloding for a `libGravity` firmware app.
+
 ## Installation
 
 Download or git clone this repository into your Arduino > libraries folder.
@@ -114,7 +124,7 @@ void UpdateDisplay() {
 }
 ```
 
-**Builing New Firmware Using libGravity**
+**Building New Firmware Using libGravity**
 
 When starting a new firmware sketch you can use the [skeleton](examples/skeleton/skeleton.ino) app as a place to start.
 
@@ -126,4 +136,4 @@ If you do not want to use the libGravity hardware abstraction library and want t
 
 ```
 $ arduino-cli compile -v -b  arduino:avr:nano ./firmware/Gravity/Gravity.ino -e --output-dir=./build/
-```
\ No newline at end of file
+```