Added setup/usage docs

INSTALL.md

@@ -1,3 +1,11 @@
+## Contents
+
+- [Installation](#installation) - install the application on a machine
+	- [Via Docker](#installation-from-docker)
+	- [Via Source](#installation-from-source)
+- [Setup](#setup) - setup the application for first use
+- [Usage](#usage) - connect the application to a website
+
 # Installation
 
 ## Requirements
@@ -176,7 +184,7 @@ You can also clone the git repository via:
 git clone https://github.com/coralproject/talk.git
 ```
 
-#### Setup
+#### Building
 
 We now have to install the dependencies and build the static assets.
 
@@ -220,4 +228,38 @@ file under the `scripts` key including:
 - `yarn e2e` run end to end tests
 - `yarn build-watch` watch for changes to client files and build static assets
 - `yarn dev-start` watch for changes to server files and reload the server while
-  also sourcing a `.env` file in your local directory for configuration
+  also sourcing a `.env` file in your local directory for configuration
+
+# Setup
+
+Once you've installed Talk (either via Docker or source), you still need to
+setup the application. If you are unfamiliar with any terminoligy used in the
+setup process, refer to the `TERMINOLOGY.md` document.
+
+## Via Web
+
+If you want to perform your setup via the web, you can navigate to your
+installation of Talk at the path `/admin/install`. There you will be asked a
+series of questions for your installation.
+
+## Via CLI
+
+If you want to perform your setup through the terminal, you can simply run:
+
+```bash
+cli setup
+```
+
+And follow the instructions to perform initial setup and create your first user
+account.
+
+
+# Usage
+
+After setup is complete, you can then refer to the `/admin/configure` path to
+get the embed code that you can copy/paste onto your blog or website in order to
+start using Talk.
+
+_In order for the embed to work correctly, you will need to whitelist the domain
+that is allowed to embed your site on the `/admin/configure` page, failure to do
+so will result in the comment stream not loading._