Fix formatting issues with footnotes (endnotes) (#2794)

Author: jimcat8

docs/release_notes/10_0.md

@@ -223,11 +223,11 @@ Replacement or removal of some of the services and packages in RL 10 include the
 | Removed | Replacement |
 | :---- | :---- |
 | power-profiles-daemon CPU throttle | tuned-ppd translation layer that supports applications written for the power-profiles-daemon |
-| redis in-memory key-value database | valkey (a fork of redis) in-memory key-value database ^1 |
+| redis in-memory key-value database | <u>valkey</u>[^1] in-memory key-value database |
 | sendmail mail transfer agent | Rocky Linux recommends migrating to the Postfix mail transfer agent. |
 | spamassassin email spam filter | The spamassassin email spam filter is now found in the EPEL repository. |
 
-1 In addition to `valkey`, the `valkey-compat-redis` package is in the Plus repository.
+[^1]: **valkey**: A fork of redis. 1 In addition to `valkey`, the `valkey-compat-redis` package is in the Plus repository.
 
 ### Dynamic Programming Languages