Update _index.md (#222)

Co-authored-by: Kory <[email protected]>

content/docs/_index.md

@@ -4,17 +4,17 @@ weight: 2
 ---
 
 The Mirantis Kubernetes Engine 4 documentation set is provided to help system
-administrators and DevOps professionals to deploy MKE 4, covering key concepts
-and functionalities.
+administrators and DevOps professionals to configure, install, and operate MKE 4,
+covering key concepts and functionalities.
 
-Like the system software it seeks to represent, the MKE 4 documentation is also
-a pre-release product, intended to evolve as MKE 4 evolves. As such, feedback on
-the comprehensiveness and quality of the content herein is both welcome and essential.
+Like the system software it seeks to represent, the MKE 4 documentation is constantly evolving.
+As such, feedback on the comprehensiveness and quality of the content herein is both welcome
+and essential.
 
 <p>&nbsp;</p>
 
 {{< hextra/hero-button
   text="File an issue for MKE 4 documentation"
   style="background-color: #214666;"
   link="https://github.com/Mirantis/mke-docs/issues/new"
->}}
+>}}