Apply suggestions from code review

Co-authored-by: Pablo Brasero <36066+pablobm@users.noreply.github.com>

Author: goosys

docs/adding_custom_field_types.md

@@ -68,7 +68,7 @@ rails generate administrate:field gravatar --look custom
 
 This will generate three files:
 
-- `app/fields/gravatar_field.rb`
+- `app/fields/gravatar_field.rb` (assuming it doesn't exist already)
 - `app/views/fields/gravatar_field/looks/custom/_show.html.erb`
 - `app/views/fields/gravatar_field/looks/custom/_index.html.erb`
 - `app/views/fields/gravatar_field/looks/custom/_form.html.erb`

lib/generators/administrate/field/field_generator.rb

@@ -4,7 +4,7 @@ class FieldGenerator < Rails::Generators::NamedBase
       class_option(
         :look,
         type: :string,
-        desc: "Specify the look for the field",
+        desc: "Generate templates for a \"look\" (alternative representation of the field)",
         default: ""
       )
 

lib/generators/administrate/views/field_generator.rb

@@ -7,7 +7,7 @@ class FieldGenerator < Administrate::ViewGenerator
         class_option(
           :look,
           type: :string,
-          desc: "Specify the look for the field",
+          desc: "Generate templates for a \"look\" (alternative representation of the field)",
           default: ""
         )