DOCS-14314 clarifying excludes install step (#5227)

* DOCS-14341 clarifying excludes install step

* DOCS-14341 adding note block

* DOCS-14341 adding note block

* DOCS-14341 copy edit

Author: ltran-mdb2

source/includes/steps-install-mongodb-on-red-hat.yaml

@@ -51,10 +51,13 @@ action:
 
       .. include:: /includes/release/pin-repo-to-version-yum.rst
   - pre: |
-      You can specify any available version of MongoDB. However ``yum``
-      upgrades the packages when a newer version becomes available. To
-      prevent unintended upgrades, pin the package. To pin a package, add
-      the following ``exclude`` directive to your ``/etc/yum.conf`` file:
+      .. note:: 
+
+        ``yum`` automatically upgrades packages when newer versions
+        become available. If you want to prevent MongoDB upgrades, pin
+        the package by adding the following ``exclude`` directive to
+        your ``/etc/yum.conf`` file:
+
     language: ini
     code: |
       exclude=mongodb-org,mongodb-org-database,mongodb-org-server,mongodb-mongosh,mongodb-org-mongos,mongodb-org-tools