Update Readme for curious people.

Author: jdillick

readme.md

@@ -2,8 +2,15 @@
 
 Provides an Apollo GraphQL client on Reactium.GraphQL singleton in Reactium project.
 
+## About this Repository
+This repository is a mono-style repo (for publishing the @reactium/graphql Reactium module to the Reactium registry), but it's also a Reactium project itself, complete with an example deno GraphQL server and a Reactium example front-end that uses the @reactium/graphql module.
+
+See below for if you want to play around with this repository in your local environment.
+
 ## Install
 
+To install this module in your own Reactium project:
+
 ```sh
 npx reactium install @reactium/graphql
 ```
@@ -48,6 +55,8 @@ export const UsersList = () => {
 
 ## Configuration
 
+There are a number of environment variables that this module will use in your Reactium project.
+
 - **GraphQL Playground** - Enabled by default in local development, disabled by default in production environment. To set the playground URL **(Defaults to `/playground`)**, set the environment variable `GRAPHQL_PLAYGROUND_URL`
 
   ```bash
@@ -70,4 +79,33 @@ export const UsersList = () => {
     ```bash
     export GRAPHQL_PROXY_URL="/my-graphql-api"
     ```
-    > Note: Changing this proxy URL will also change the default GraphQL Server URL (unless you have set it with `GRAPHQL_URL`)
+    > Note: Changing this proxy URL will also change the default GraphQL Server URL (unless you have set it with `GRAPHQL_URL`)
+
+## Using this demo GraphQL server
+
+This repository has an example deno server that runs a GraphQL server.
+
+See `./GraphQLServer` for the deno server. You will need to have [deno installed](https://docs.deno.com/runtime/manual/) and configure your local mongo instance credentials, by adding the `MONGODB_URI` variable to `./GraphQLServer/.env`:
+
+```
+MONGODB_URI=mongodb://deno:denopwd@localhost:27017/deno
+```
+> Example local mongodb URI
+
+I'd also recommend installing [denon](https://deno.land/x/denon@2.5.0/docs/installation.md?source=) (like nodemon for deno) for easy startup of the server locally:
+
+```sh
+cd ./GraphQLServer
+denon start
+```
+
+## Starting the UI
+
+This repository includes a Reactium project with a UI that can interact with the included Deno server.
+
+To start the UI:
+
+```sh
+npx reactium install # first time to install dependencies (includes npm dependencies as well)
+npm run local
+```