Added how to re-enable Slim escaping

README.md

@@ -19,6 +19,38 @@ class CommentCell < Cell::ViewModel
   include Cell::Slim
 ```
 
+## Important
+
+Cells Slim change default settings for Slim and disables escaping in templates.
+To re-enable it, you can use below snippet:
+
+It can be changed easy by override **template_options_for** from **Cells::Slim**:
+```ruby
+module Cell
+  module Slim
+    def template_options_for(options)
+      {
+          template_class: ::Slim::Template,
+          suffix: 'slim',
+          disable_escape: false,
+          escape_code: false,
+          use_html_safe: false, # set true for Rails
+          buffer: '@output_buffer'
+      }
+    end
+  end
+end
+```
+
+This can be put in **config/application.rb**.
+
+**Remember** that you need to use '==' instead of '=' ([reference in Slim docs](http://www.rubydoc.info/gems/slim/frames#Output_without_HTML_escaping___)) in your templates for code which should not be escaped, for example form_builder (notice that only from_for line require '=='):
+```
+== form_for model, url: users_path, method: method do |f|
+  = f.text_field :first_name
+  = f.text_field :last_name
+```
+
 ## Documentation
 
 [More documentation](http://trailblazerb.org/gems/cells/templates.html) can be found on the Trailblazer page.