README.adoc in caliber-0.29.0 vs README.adoc in caliber-0.30.0

@@ -34,14 +34,30 @@
 * link:https://github.com/ruby/rake[Rake]
 * link:https://rspec.info[RSpec]
 
 == Setup
 
-To install, run:
+To install _with_ security, run:
 
 [source,bash]
 ----
+# 💡 Skip this line if you already have the public certificate installed.
+gem cert --add <(curl --compressed --location https://alchemists.io/gems.pem)
+gem install caliber --trust-policy HighSecurity
+----
+
+To install _without_ security, run:
+
+[source,bash]
+----
 gem install caliber
+----
+
+You can also add the gem directly to your project:
+
+[source,bash]
+----
+bundle add caliber
 ----
 
 == Usage
 
 This gem is designed to replace all of your RuboCop setup with only a single reference to this gem.