docs: add about and getting started docs

docs/guides/introduction/about.md

@@ -1 +1,24 @@
 # About Daffodil
+
+Daffodil is a client-side framework for building ecommerce stores. It presents a standard set of interfaces with which the frontend application can interact along with a selection of drivers that communicate with the platform of choice.
+
+## Objectives
+Daffodil aims to:
+- Provide a strongly-typed set of libraries and component kit to simplify ecommerce store development
+- Ease migration between ecommerce platforms by decoupling frontend code from the current platform's API
+- Provide a collection of features a-la carte style such that no unused features are unnecessarily imported
+- Allow extension and customization such that business-specific features can be supported in a platform-agnostic way
+
+<!--- TODO: add link to longer motivations explanation --->
+
+## Architecture
+The most common type of Daffodil package has a number of layers that can be visualized like so:
+```mermaid
+flowchart TD
+    A[Routing] --> B[State]
+    B --> C{Driver Interfaces}
+    D[Platform Drivers] --> C
+    C --> E[Models]
+```
+Each of these layers exists as a subpackage of the corresponding feature module, e.g. `@daffodil/cart/state`.
+<!--- TODO: add link to longer architecture explanation --->

docs/guides/introduction/getting-started.md

@@ -1,2 +1,30 @@
 # Getting Started
+## Installation
+Daffodil packages are provided a la carte. Each package provides a particular feature and must be installed separately. The following example demonstrates how to install the product package with `npm`.
 
+```sh
+npm install --save @daffodil/product
+```
+
+## Usage
+The first step is to choose a driver that corresponds to the platform of choice. Daffodil provides lightweight in-memory API drivers to mock out a test platform for rapid frontend development.
+<!--- TODO: add link to in-memory explanation --->
+Once a platform has been chosen, import the corresponding driver module:
+
+```ts
+import {DaffProductInMemoryDriverModule} from '@daffodil/product/driver/in-memory'
+
+@NgModule({
+  imports: [
+    DaffProductInMemoryDriverModule.forRoot()
+  ]
+})
+class AppModule {}
+```
+
+Interacting with a given platform through Daffodil can be done in a couple of ways. The simplest, and recommended, way is through state.
+
+### State
+Interaction with the platform is done by dispatching actions and reading data from facades. Daffodil state packages track the loading state of each operation and store the results and/or errors in redux state.
+
+<!--- TODO: add link to simple state example --->