Adds a blog post link to release highlights

docs/whats-new.asciidoc

@@ -2,7 +2,7 @@
 [chapter]
 = What's new in {minor-version}
 
-Here are the highlights of what’s new and improved in {elastic-sec}. For detailed information about this release, check out the <<release-notes, Release notes>>.
+Here are the highlights of what’s new and improved in {elastic-sec}. For detailed information about this release, check out the <<release-notes, Release notes>>. To discover how you can benefit from these enhancements, visit our https://www.elastic.co/blog/whats-new-elastic-security-8-10-0[blog post]. 
 
 Other versions: {security-guide-all}/8.9/whats-new.html[8.9] | {security-guide-all}/8.8/whats-new.html[8.8] | {security-guide-all}/8.7/whats-new.html[8.7] | {security-guide-all}/8.6/whats-new.html[8.6] | {security-guide-all}/8.5/whats-new.html[8.5] | {security-guide-all}/8.4/whats-new.html[8.4] | {security-guide-all}/8.3/whats-new.html[8.3] | {security-guide-all}/8.2/whats-new.html[8.2] | {security-guide-all}/8.1/whats-new.html[8.1] | {security-guide-all}/8.0/whats-new.html[8.0] | {security-guide-all}/7.17/whats-new.html[7.17] | {security-guide-all}/7.16/whats-new.html[7.16] | {security-guide-all}/7.15/whats-new.html[7.15] | {security-guide-all}/7.14/whats-new.html[7.14] | {security-guide-all}/7.13/whats-new.html[7.13] | {security-guide-all}/7.12/whats-new.html[7.12] | {security-guide-all}/7.11/whats-new.html[7.11] | {security-guide-all}/7.10/whats-new.html[7.10] |
 {security-guide-all}/7.9/whats-new.html[7.9]