Update connect-to-a-database.mdx (#3736)

* Update connect-to-a-database.mdx

Light modification to improve readability (and align wording between IAM user / IAM application) based on a user feedback who misread the information.

* Apply suggestions from code review

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

---------

Co-authored-by: Benedikt Rollik <[email protected]>
Co-authored-by: Jessica <[email protected]>

Author: 3 people

serverless/sql-databases/how-to/connect-to-a-database.mdx

@@ -51,9 +51,9 @@ To connect to a Serverless SQL Database, you can either use a **connection strin
 
 1. From the **Overview** tab of your database, click the **Set up credentials** button. The setup wizard displays.
 
-2. Select the [principal](/identity-and-access-management/iam/concepts/#principal) to connect to the database:
-    - Yourself, as an [IAM user](/identity-and-access-management/iam/concepts/#user).
-    - An [application](/identity-and-access-management/iam/concepts/#application) that you [previously created](/identity-and-access-management/iam/how-to/create-application/) in the IAM section of the console.
+2. Select the [principal](/identity-and-access-management/iam/concepts/#principal) to connect to the database, who can be either:
+    - Yourself, as an [IAM user](/identity-and-access-management/iam/concepts/#user), or
+    - An [IAM application](/identity-and-access-management/iam/concepts/#application) you [previously created](/identity-and-access-management/iam/how-to/create-application/) in the IAM section of the console.
     <Message type="note">
         Refer to the [IAM documentation](/identity-and-access-management/iam/reference-content/overview/) for more information on identities and access rights.
     </Message>