Add LiveReload extension (#66)

This extension automatically refreshes the browser as you make
changes to pages when doing local development.

Gemfile

@@ -6,6 +6,7 @@ gem 'middleman', '~> 4.4'
 gem 'middleman-syntax', '~> 3.2'
 gem 'middleman-autoprefixer', '~> 3.0'
 gem 'middleman-sprockets', '~> 4.1'
+gem 'middleman-livereload', "~> 3.4.3"
 gem 'rouge', '~> 3.21'
 gem 'redcarpet', '~> 3.6.0'
 gem 'nokogiri', '~> 1.13.3'

Gemfile.lock

@@ -19,7 +19,11 @@ GEM
     concurrent-ruby (1.2.0)
     contracts (0.16.1)
     dotenv (2.8.1)
+    em-websocket (0.5.3)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0)
     erubis (2.7.0)
+    eventmachine (1.2.7)
     execjs (2.7.0)
     fast_blank (1.0.1)
     fastimage (2.2.6)
@@ -30,6 +34,7 @@ GEM
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
     hashie (3.6.0)
+    http_parser.rb (0.8.0)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     kramdown (2.4.0)
@@ -74,6 +79,10 @@ GEM
       toml
       uglifier (~> 3.0)
       webrick
+    middleman-livereload (3.4.7)
+      em-websocket (~> 0.5.1)
+      middleman-core (>= 3.3)
+      rack-livereload (~> 0.3.15)
     middleman-sprockets (4.1.1)
       middleman-core (~> 4.0)
       sprockets (>= 3.0)
@@ -95,6 +104,8 @@ GEM
     public_suffix (5.0.1)
     racc (1.6.0)
     rack (2.2.6.2)
+    rack-livereload (0.3.17)
+      rack
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -130,6 +141,7 @@ PLATFORMS
 DEPENDENCIES
   middleman (~> 4.4)
   middleman-autoprefixer (~> 3.0)
+  middleman-livereload (~> 3.4.3)
   middleman-sprockets (~> 4.1)
   middleman-syntax (~> 3.2)
   nokogiri (~> 1.13.3)

config.rb

@@ -76,6 +76,9 @@
   config.inline   = true
 end
 
+# Activate LiveReload
+activate :livereload
+
 # Github pages require relative links
 #activate :relative_assets
 #set :relative_links, true