Clarify the setup guide introduction. (#16)

Author: samuel-williams-shopify

context/getting-started.md

@@ -1,6 +1,6 @@
 # GitHub Releases
 
-This guide sets up reviewed Ruby gem releases with `bake-gem-github`, native GitHub rules, RubyGems Trusted Publishing, and retained release artifacts.
+This guide explains how to set up reviewed Ruby gem releases with `bake-gem-github`, native GitHub rules, RubyGems Trusted Publishing, and retained release artifacts.
 
 ## Installation
 

context/index.yaml

@@ -6,5 +6,5 @@ metadata: {}
 files:
 - path: getting-started.md
   title: GitHub Releases
-  description: This guide sets up reviewed Ruby gem releases with `bake-gem-github`,
+  description: This guide explains how to set up reviewed Ruby gem releases with `bake-gem-github`,
     native GitHub rules, RubyGems Trusted Publishing, and retained release artifacts.

guides/getting-started/readme.md

@@ -1,6 +1,6 @@
 # GitHub Releases
 
-This guide sets up reviewed Ruby gem releases with `bake-gem-github`, native GitHub rules, RubyGems Trusted Publishing, and retained release artifacts.
+This guide explains how to set up reviewed Ruby gem releases with `bake-gem-github`, native GitHub rules, RubyGems Trusted Publishing, and retained release artifacts.
 
 ## Installation