README.md in capistrano-nginx-unit-0.6.2 vs README.md in capistrano-nginx-unit-0.7.0

@@ -49,10 +49,11 @@
 set :nginx_unit_processes,    -> { nil }
 set :nginx_unit_user,         -> { nil }
 set :nginx_unit_group,        -> { nil }
 set :nginx_unit_working_dir,  -> { nil }
 set :nginx_unit_script,       -> { "config.ru" }
+set :nginx_unit_environment,  -> { {} }
 ```
 
  - `:nginx_unit_roles`
    
    Roles to run tasks for NGINX Unit. Default: `:app`
@@ -89,6 +90,11 @@
 
  - `:nginx_unit_script`
 
    Rack application script path. Default: `RELEASE_PATH/config.ru`  
    See [Ruby application configuration](https://unit.nginx.org/configuration/#ruby-application)
+
+ - `:nginx_unit_environment` (NGINX Unit >= 1.2)
+
+   Environment variable setting. Default value is empty.  
+   This variable accepts `Hash`. e.g., `{ "RAILS_ENV" => "production" }`.
    
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