Add unicorn to the Gemfile

Gemfile

@@ -4,3 +4,4 @@ gem 'dotenv',             '~> 2.0.2'
 gem 'mrkt',               '~> 0.6.0'
 gem 'full-name-splitter', '~> 0.1.2'
 gem 'sinatra',            '~> 1.4.6', require: 'sinatra/base'
+gem 'unicorn'

Gemfile.lock

@@ -7,17 +7,23 @@ GEM
     faraday_middleware (0.9.2)
       faraday (>= 0.7.4, < 0.10)
     full-name-splitter (0.1.2)
+    kgio (2.10.0)
     mrkt (0.6.1)
       faraday_middleware (~> 0.9.1)
     multipart-post (2.0.0)
     rack (1.6.4)
     rack-protection (1.5.3)
       rack
+    raindrops (0.15.0)
     sinatra (1.4.6)
       rack (~> 1.4)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
     tilt (2.0.1)
+    unicorn (5.0.1)
+      kgio (~> 2.6)
+      rack
+      raindrops (~> 0.7)
 
 PLATFORMS
   ruby
@@ -27,6 +33,7 @@ DEPENDENCIES
   full-name-splitter (~> 0.1.2)
   mrkt (~> 0.6.0)
   sinatra (~> 1.4.6)
+  unicorn
 
 BUNDLED WITH
    1.10.6