add cli intro

Co-authored-by: quasystaty <121364949+quasystaty1@users.noreply.github.com>

docs/developer/tutorials/install-the-cli.md

@@ -1,5 +1,6 @@
 # Install the Astria CLI
 
+The astria-go cli is a tool designed to make local rollup development as simple and dependency free as possible. It provides functionality to easily run the Astria stack and interact with the Sequencer.
 ## Download using Curl
 
 <!--@include: ../../components/_astria-go-cli-install.md-->