message: Add stability index for cost insights
diff: @@ -153,6 +153,13 @@ re-exported from @backstage/core, and this package should not be used directly.
  Stability: See @backstage/core
  +### `cost-insights` [GitHub](https://github.com/backstage/backstage/tree/master/plugins/cost-insights)
  +
  +A frontend plugin that allows users to visualize, understand and optimize your
  +team's cloud costs.
  +
  +Stability: `1`
  +
  ### `create-app` [GitHub](https://github.com/backstage/backstage/tree/master/packages/create-app/)
  The CLI used to scaffold new Backstage projects.
  @@ -359,7 +366,7 @@ https://github.com/backstage/backstage/issues/2771.
  ### `tech-radar` [GitHub](https://github.com/backstage/backstage/tree/master/plugins/tech-radar/)
  -Visualize the your company's official guidelines of different areas of software
  +Visualize your company's official guidelines of different areas of software
  development.
  Stability: `0`
  