updates footnote recommendation

Author: jeana-redhat

contributing_to_docs/doc_guidelines.adoc

@@ -1627,8 +1627,7 @@ footnoteref:[ref-string, This is the footnote text.]
 
 ==== Alternative footnote styling in tables
 
-For footnotes in tables, use the following syntax to mimic Asciidoctor's
-styling:
+For footnotes in tables, use the following syntax:
 
 ....
 [cols="3",options="header"]
@@ -1645,21 +1644,19 @@ styling:
 |Item E ^[3]^
 |Item F ^[3]^
 |===
-[.small]
---
-1. A description.
-2. Another description.
-3. Two items relate to this description.
---
+. A description.
+. Another description.
+. Two items relate to this description.
 ....
 
-The notes are kept immediately after the table, instead of moved to the bottom of the rendered assembly. This manual method also allows you to reuse the same footnote number for multiple references as needed.
-
-Note the following:
+The notes immediately follow the table, instead of appearing at the bottom of the rendered assembly. With this manual method, you can also reuse the same footnote number for more than one reference.
 
+[NOTE]
+====
+* Because this method uses a standard ordered list, you might find it helpful to use numbers (such as `1.` instead of `.`) while writing.
 * Add a space before the superscripted numbers with square brackets.
-* To match the table cell's font size, start the ordered list with a `[.small]`
-style and wrap it in a `--` block.
+* Older versions of these guidelines recommended the use of the deprecated `[.small]` style. The Red Hat Customer Portal does not support this style.
+====
 
 [id="collapsible-content"]
 === Collapsible content