Add text to better link from 15.0 UI announcement

data/deprecations/templates/_deprecation_template.md.erb

@@ -35,6 +35,12 @@ For deprecation reviewers (Technical Writers only):
 - For more information about updating the deprecation doc, see the deprecation doc update guidance:
   https://about.gitlab.com/handbook/marketing/blog/release-posts/#update-the-deprecations-doc
 -->
+
+View deprecations by the product versions in which they were announced.
+
+Each deprecation has a **planned removal milestone** and indicates whether it is a breaking change.
+
+Most of the deprecations are **planned for removal in 15.0**, and many of them are **breaking changes**.
 <% if milestones.any? -%>
   <%- milestones.each do |milestone| %>
 ## <%= milestone %>

doc/update/deprecations.md

@@ -36,6 +36,12 @@ For deprecation reviewers (Technical Writers only):
   https://about.gitlab.com/handbook/marketing/blog/release-posts/#update-the-deprecations-doc
 -->
 
+View deprecations by the product versions in which they were announced.
+
+Each deprecation has a **planned removal milestone** and indicates whether it is a breaking change.
+
+Most of the deprecations are **planned for removal in 15.0**, and many of them are **breaking changes**.
+
 ## 14.9
 
 ### Background upload for object storage