[devdocsgjs/main: 920/1867] Move Gemfile dependencies to (hopefully) fix Heroku deployments

[Andy Holmes <andyholmes src gnome org>]

commit 545a1ff82a08c558c5d657dfb45bb27f95c1b402
Author: Jasper van Merle <jaspervmerle gmail com>
Date:   Tue Sep 3 22:34:11 2019 +0200

    Move Gemfile dependencies to (hopefully) fix Heroku deployments

 Gemfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/Gemfile b/Gemfile
index 3c9ce68b..4675f918 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,6 +24,8 @@ group :app do
   gem 'coffee-script'
   gem 'chunky_png'
   gem 'sprockets-sass'
+  gem 'image_optim'
+  gem 'image_optim_pack', platforms: :ruby
 end
 
 group :production do
@@ -36,8 +38,6 @@ group :development do
 end
 
 group :docs do
-  gem 'image_optim'
-  gem 'image_optim_pack', platforms: :ruby
   gem 'progress_bar', require: false
   gem 'unix_utils', require: false
   gem 'tty-pager', require: false