Internal Release v0.1.1

- implement `Prompt`
- adjust Tool approach
- update readme for tool calling
- document usage of `Prompt`

Gemfile

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+# Specify runtime dependencies in the gemspec
+gemspec
+
+# Specify development dependencies below
+gem "minitest", "~> 5.1", require: false
+gem "rake", "~> 13.0"
+gem "rubocop-shopify", require: false
+
+gem "activesupport"
+gem "minitest-reporters"
+gem "mocha"