Update serverless-project-billing-dimensions.md (#4003)

Related to: https://elasticco.atlassian.net/browse/PB-5632

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Co-authored-by: David Kilfoyle <[email protected]>

Author: kamilf92

deploy-manage/cloud-organization/billing/serverless-project-billing-dimensions.md

@@ -15,7 +15,7 @@ products:
 * [Offerings](#offerings)
 * [Add-ons](#add-ons)
 
-Specific prices can be found in the [Cloud Pricing Table](https://cloud.elastic.co/cloud-pricing-table?productType=serverless).
+Specific prices can be found in the [Cloud Pricing Table](https://cloud.elastic.co/cloud-pricing-table?productType=serverless) or you can create an [Elastic Cloud Serverless Estimate](https://cloud.elastic.co/pricing/serverless).
 
 ## Offerings [offerings]