message: fix cost-insight contrib doc refs
diff: @@ -77,7 +77,7 @@ We can use the data provided by the Cost Explorer API to implement CostInsightsA
  ### 1. [getGroupDailyCost](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/api/CostInsightsApi.ts#L93)
  -The `getGroupDailyCost` method is expected to return daily cost aggregations for a given group and interval time frame as a [`Cost`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/types/Cost.ts).
  +The `getGroupDailyCost` method is expected to return daily cost aggregations for a given group and interval time frame as a [`Cost`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights-common/src/types/Cost.ts).
  #### Total Daily cost
  @@ -208,13 +208,13 @@ Sample `groupedCosts` based on the response:
  ### 2. [getProjectDailyCost](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/api/CostInsightsApi.ts#L111)
  -The `getProjectDailyCost` method is expected to return daily cost aggregations for a given billing entity and interval time frame as a [`Cost`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/types/Cost.ts).
  +The `getProjectDailyCost` method is expected to return daily cost aggregations for a given billing entity and interval time frame as a [`Cost`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights-common/src/types/Cost.ts).
  This should be similar to the `getGroupDailyCost` method implementation, but with an updated `LINKED_ACCOUNT` filter to get narrower cost data for a lower-level linked account.
  ### 3. [getProductInsights](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/api/CostInsightsApi.ts#L111)
  -The `getProductInsights` method is expected to return cost aggregations for a particular cloud product and interval time frame as an [`Entity`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights/src/types/Entity.ts).
  +The `getProductInsights` method is expected to return cost aggregations for a particular cloud product and interval time frame as an [`Entity`](https://github.com/backstage/backstage/blob/master/plugins/cost-insights-common/src/types/Entity.ts).
  #### Cloud product cost by resource
  