Zeitwerk autoload fixes (#1709)

* corrected gemfile generation

* loaded active_graph in railtie

* removed commented code from gemfile

Author: mrhardikjoshi

Gemfile

@@ -2,10 +2,6 @@ source 'http://rubygems.org'
 
 gemspec
 
-# gem 'neo4j-ruby-driver', path: '../neo4j-ruby-driver'
-
-# gem 'listen', '< 3.1'
-
 active_model_version = ENV['ACTIVE_MODEL_VERSION']
 gem 'activemodel', "~> #{active_model_version}" if active_model_version&.length&.positive?
 

docs/activegraph.rb

@@ -1,6 +1,6 @@
 # Usage: rails new myapp -m activegraph.rb
 
-gem 'activegraph', '=> 11.1'
+gem 'activegraph', '>= 11.1'
 
 gem_group :development do
   gem 'neo4j-rake_tasks'

lib/active_graph/railtie.rb

@@ -1,3 +1,5 @@
+require 'active_graph'
+
 module ActiveGraph
   class Railtie < ::Rails::Railtie
     def empty_config