Update aws_epas.mdx

Some suggested edits per my discussion in the Docs channel, it may need a few more based on my comments.

product_docs/docs/epas/15/planning/deployment_options/aws_epas.mdx

@@ -13,7 +13,7 @@ With the EDB Postgres Advanced Server AMI, you can:
 
 ## Creating an instance
 
-To create an EDB Postgres Advanced Server instance on AWS: 
+To deploy an EDB Postgres Advanced Server instance on AWS: 
 
 1. Log into your AWS account.
 
@@ -25,7 +25,7 @@ To create an EDB Postgres Advanced Server instance on AWS:
 
    - **Name and tags** — Provide the name of the server, for example, `EDB test server`.
 
-   - **Application and OS Images (Amazon Machine Image)** &mdash; On the **My AMIs** tab, select **Owned by me** and choose the EDB Postgres Advanced Server image. The image name is in the format `EDB-AS<x>-AWS-<y>`, where: 
+   - **Application and OS Images (Amazon Machine Image)** &mdash; On the **AWS Marketplace** tab, type **EDB** in the search bar and choose the EDB Postgres Advanced Server image. The image name is in the format `EDB-AS<x>-AWS-<y>`, where: 
 
      - `<x>` is the version of EDB Postgres Advanced Server.