Merge pull request usds#223 from usds/jekyll-3.7.4

jekyll 3.7.4

Author: jaredcunha-usds

Gemfile

@@ -3,4 +3,4 @@ gem 'github-pages'
 gem 'sass', '~>3.4.22'
 gem 'bourbon', '~>4.0.2'
 gem 'neat', '~>1.6.0'
-gem "jekyll", "~> 3.7.3"
+gem "jekyll", "~> 3.7.4"

Gemfile.lock

@@ -247,7 +247,7 @@ PLATFORMS
 DEPENDENCIES
   bourbon (~> 4.0.2)
   github-pages
-  jekyll (~> 3.7.3)
+  jekyll (~> 3.7.4)
   neat (~> 1.6.0)
   sass (~> 3.4.22)