Add Labs visualization details (#393)

* Add Labs visualization details

Adding details about the Lighthouse Visualization Labs feature.

* Update README.md

Co-authored-by: jmarlena <[email protected]>

* Applying changes from Labs repo

Applying the changes to the Visualization Labs feature docs within the Labs repo.

Co-authored-by: jmarlena <[email protected]>

Author: MetalMatt-Netlify

README.md

@@ -91,3 +91,19 @@ Create a `.env` file based on the [example](.env.example) and run
 yarn install
 yarn local
 ```
+
+## Lighthouse Score Visualizations (Labs feature)
+
+When you install the [Lighthouse Build Plugin](https://app.netlify.com/plugins/@netlify/plugin-lighthouse/install) on your site and enable this experimental feature, you can view the Lighthouse scores for each of your builds on your site's Deploy Details page with a much richer format.
+
+<img width="1400" alt="Deploy view with Lighthouse visualizations" src="https://user-images.githubusercontent.com/79875905/160019039-c3e529de-f389-42bc-a3d4-458c90d59e6a.png">
+
+If you have multiple audits (directories, paths, etc) defined in your build, we will display a roll-up of the average Lighthouse scores for all the current build's audits plus the results for each individual audit.
+
+<img width="1400" alt="Deploy details with multiple audit Lighthouse results" src="https://user-images.githubusercontent.com/79875905/160019057-d29dffab-49f3-4fbf-a1ac-1f314e0cd837.png">
+
+Some items of note:
+- The [Lighthouse Build Plugin](https://app.netlify.com/plugins/@netlify/plugin-lighthouse/install) must be installed on your site(s) in order for these score visualizations to be displayed.
+- This Labs feature is currently only enabled at the user-level, so it will need to be enabled for each individual team member that wishes to see the Lighthouse scores displayed.
+
+We have a lot planned for this feature and will be adding functionality regularly, but we'd also love to hear your thoughts. Please [share your feedback](https://netlify.qualtrics.com/jfe/form/SV_1NTbTSpvEi0UzWe) about this experimental feature and tell us what you think.