Add pry to development section of Gemfile

.gitlab-ci.yml

 before_script:
-  - bundle install
+  - bundle install --without=development
 
 test:
   stage: test

Gemfile

@@ -10,3 +10,7 @@ end
 group :test do
   gem 'html-proofer'
 end
+
+group :development do
+  gem 'pry'
+end

Gemfile.lock

@@ -15,6 +15,7 @@ GEM
     citeproc-ruby (1.1.0)
       citeproc (>= 1.0.2, < 2.0)
       csl (~> 1.4)
+    coderay (1.1.1)
     colorator (0.1)
     colored (1.2)
     csl (1.4.3)
@@ -61,12 +62,17 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.5)
+    method_source (0.8.2)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
     namae (0.10.1)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
     parallel (1.6.1)
+    pry (0.10.3)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
+      slop (~> 3.4)
     rake (10.5.0)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
@@ -74,6 +80,7 @@ GEM
     rouge (1.10.1)
     safe_yaml (1.0.4)
     sass (3.4.21)
+    slop (3.6.0)
     thread_safe (0.3.5)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
@@ -89,6 +96,7 @@ DEPENDENCIES
   html-proofer
   jekyll
   jekyll-scholar
+  pry
   rake
 
 BUNDLED WITH