docs: add philips hue video demo

Refs: #681 (comment)
Signed-off-by: Jef LeCompte <jeffreylec@gmail.com>

README.md

@@ -339,12 +339,14 @@ environment variables are **optional**._
 | `PAGERDUTY_SEVERITY` | Severity of PagerDuty events | Default: `info` |
 
 </details>
+
 <details>
 <summary>Philips Hue</summary>
 
 | Environment variable | Description | Notes |
 |:---:|---|---|
-| `PHILIPS_HUE_API_KEY` | Hue Bridge API Key | **Required**, generate key using instructions [here](https://developers.meethue.com/develop/get-started-2/). This will be used for both LAN and cloud access over the official Remote Hue API. |
+| `PHILIPS_HUE_API_KEY` | Hue Bridge API Key | **
+Required**, generate key using instructions [here](https://developers.meethue.com/develop/get-started-2/). This will be used for both LAN and cloud access over the official Remote Hue API. |
 | `PHILIPS_HUE_LAN_BRIDGE_IP` | LAN IP Address of your Hue Bridge | LAN only, e.g. `192.168.x.x`|
 | `PHILIPS_HUE_LIGHT_IDS` | Light IDs | Optional (all if not supplied). Comma seperated, e.g.: `1`, `2` |See Hue App → About for IDs |
 | `PHILIPS_HUE_LIGHT_COLOR` | Color in RGB Format | Optional (NVIDIA green if not supplied). Comma separated, e.g.: `255`, `255`, `255`|
@@ -354,8 +356,10 @@ environment variables are **optional**._
 | `PHILIPS_HUE_CLOUD_CLIENT_ID` | Remote Client ID | Cloud only, the client ID to use when accessing the Remote Hue API. |
 | `PHILIPS_HUE_CLOUD_CLIENT_SECRET` | Remote Client Secret | Cloud only, the client secret to use when accessing the Remote Hue API.   |
 
+> :point_right: [Video demonstration](https://vimeo.com/476083242)
 
 </details>
+
 <details>
 <summary>Pushbullet</summary>
 
@@ -465,8 +469,8 @@ has [already](https://github.com/jef/streetmerchant/issues/182) [been](https://g
 .
 
 **Q: I'd love to contribute, how do I do that?** Make
-a [pull request](https://github.com/jef/streetmerchant/pulls?q=is%3Apr+is%3Aopen+sort%3Aupdated-desc)! All
-contributions are welcome.
+a [pull request](https://github.com/jef/streetmerchant/pulls?q=is%3Apr+is%3Aopen+sort%3Aupdated-desc)! All contributions
+are welcome.
 
 **Q: Why do I have to download all this stuff just to get this bot working?** Well, I would rather you didn't either.
 See [#11](https://github.com/jef/streetmerchant/issues/11).