docs: add README, link configuration instructions for module

Author: HipsterBrown

README.md

@@ -0,0 +1,61 @@
+# `refill-controller` module
+
+This [module](https://docs.viam.com/registry/modular-resources/) implements the [`rdk:service:generic` API](https://docs.viam.com/appendix/apis/services/generic/) for the Smart Snack Dispenser demo.
+
+With this model, you can set up automated refilling of a snack bowl from a motorized dispenser using computer vision.
+
+## Requirements
+
+This module assumes you have a Viam machine configured with a camera component, a motor component, and a vision service that can perform image classification.
+
+## Model: viam-demo:refill-controller:refiller
+
+With this model, you can set up automated refilling of a snack bowl from a motorized dispenser using computer vision.
+
+Navigate to the [**CONFIGURE** tab](https://docs.viam.com/configure/) of your [machine](https://docs.viam.com/fleet/machines/) in the [Viam app](https://app.viam.com/).
+[Add `viam-demo:refill-controller` to your machine](https://docs.viam.com/configure/#services).
+
+### Attributes
+
+The following attributes are available for `viam-demo:refill-controller:refiller` generic service:
+
+| Name    | Type   | Required?    | Default | Description |
+| ------- | ------ | ------------ | ------- | ----------- |
+| `camera_name` | string | Required | N/A | The name of the camera component to use to get images. |
+| `motor_name` | string | Required | N/A | The name of the motor component to use to dispense snacks. |
+| `vision_name` | string | Required | N/A | The name of the vision service to use to get classifications using the image from the camera. |
+| `confidence_level` | number | Optional | 0.55 | Number between 0 and 1 as a minimum percentage of confidence for the returned classifications from the vision service |
+
+### Example configuration
+
+```json
+{
+    "camera_name": "camera-1",
+    "motor_name": "motor-1",
+    "vision_name": "vision-1"
+}
+```
+
+## Commands
+
+This module implements the following commands to be used by the `DoCommand` method in the Control tab of the Viam app or one of the language SDKs.
+
+**start**
+
+Start the control loop for detecting an empty bowl and triggering refills.
+
+```json
+{
+    "start": []
+}
+```
+
+**stop**
+
+Stop the control loop.
+
+```json
+{
+    "stop": []
+}
+```

meta.json

@@ -1,13 +1,15 @@
 {
   "$schema": "https://dl.viam.dev/module.schema.json",
   "module_id": "viam-demo:refill-controller",
-  "visibility": "private",
-  "url": "",
+  "visibility": "public",
+  "url": "https://github.com/viam-devrel/refill-controller",
   "description": "Modular generic service: refiller",
   "models": [
     {
       "api": "rdk:service:generic",
-      "model": "viam-demo:refill-controller:refiller"
+      "model": "viam-demo:refill-controller:refiller",
+      "short_description": "Automatically run a motor based on classifications from a vision service",
+      "markdown_link": "README.md#model-viam-demorefill-controllerrefiller"
     }
   ],
   "entrypoint": "dist/main",
@@ -21,4 +23,4 @@
       "linux/arm64"
     ]
   }
-}
+}