Remove features-by-stage tables

Also remove hard-coded font awesome icons and HTML

doc/ci/migration/jenkins.md

@@ -189,8 +189,8 @@ pdf:
 ```
 
 Additionally, we have package management features like a built-in container, NPM, and Maven registry that you
-can leverage. You can see the complete list of packaging features (which includes links to documentation)
-in the [Packaging section of our documentation](../../README.md#package).
+can leverage. You can see the complete list of packaging features in the
+[Packages & Registries](../../user/packages/index.md) documentation.
 
 ## Integrated features