Add jekyll-redirect-from gem

Gemfile

@@ -2,10 +2,13 @@ source 'https://rubygems.org'
 
 gem 'jekyll'
 
+# list of gems supported by github pages:
+# https://pages.github.com/versions/
+# https://jekyllrb.com/docs/plugins/installation/
 group :jekyll_plugins do
   gem 'jekyll-paginate'
   gem 'jekyll-minifier'
-  # gem 'jekyll-haml'
+  gem 'jekyll-redirect-from'
 end
 
 gem 'therubyracer'

Gemfile.lock

@@ -37,6 +37,8 @@ GEM
       json-minify (~> 0.0.3)
       uglifier (~> 4.1)
     jekyll-paginate (1.1.0)
+    jekyll-redirect-from (0.16.0)
+      jekyll (>= 3.3, < 5.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-watch (2.0.0)

_config.yml

@@ -1,6 +1,11 @@
 # For technical reasons, this file is *NOT* reloaded automatically when you use
 # 'jekyll serve'. If you change this file, please restart the server process.
 
+plugins:
+  - jekyll-minifier
+  - jekyll-paginate
+  - jekyll-redirect-from
+
 # Site settings
 title: Safing
 encoding: "utf-8"