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doc/development/fe_guide/haml.md

@@ -11,14 +11,13 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 ## GitLab UI form builder
 
 [GitLab UI](https://gitlab-org.gitlab.io/gitlab-ui/) is a Vue component library that conforms
-to the [Pajamas design system](https://design.gitlab.com/). Most of these these components
+to the [Pajamas design system](https://design.gitlab.com/). Most of these components
 rely on JavaScript and therefore can only be used in Vue.
 
 However, some of the simpler components (checkboxes, radio buttons, form inputs) can be
 used in HAML by applying the correct CSS classes to the elements. A custom
 [Ruby on Rails form builder](https://gitlab.com/gitlab-org/gitlab/-/blob/7c108df101e86d8a27d69df2b5b1ff1fc24133c5/lib/gitlab/form_builders/gitlab_ui_form_builder.rb) exists to help use GitLab UI components in HAML.
 
-
 ### Use the GitLab UI form builder
 
 To use the GitLab UI form builder:
@@ -27,13 +26,12 @@ To use the GitLab UI form builder:
 1. Change `f.check_box` to `f.gitlab_ui_checkbox_component`.
 1. Remove `f.label` and instead pass the label as the second argument in `f.gitlab_ui_checkbox_component`.
 
-
 For example:
 
 - Before:
 
-```haml
-= gitlab_ui_form_for @group do |f|
+  ```haml
+  = gitlab_ui_form_for @group do |f|
     .form-group.gl-mb-3
       .gl-form-checkbox.custom-control.custom-checkbox
         = f.check_box :prevent_sharing_groups_outside_hierarchy, disabled: !can_change_prevent_sharing_groups_outside_hierarchy?(@group), class: 'custom-control-input'
@@ -41,25 +39,25 @@ For example:
           %span
             = s_('GroupSettings|Prevent members from sending invitations to groups outside of %{group} and its subgroups.').html_safe % { group: link_to_group(@group) }
           %p.help-text= prevent_sharing_groups_outside_hierarchy_help_text(@group)
-```
+  ```
 
 - After:
 
-```haml
-= gitlab_ui_form_for @group do |f|
+  ```haml
+  = gitlab_ui_form_for @group do |f|
     .form-group.gl-mb-3
       = f.gitlab_ui_checkbox_component :prevent_sharing_groups_outside_hierarchy,
           s_('GroupSettings|Prevent members from sending invitations to groups outside of %{group} and its subgroups.').html_safe % { group: link_to_group(@group) },
           help_text: prevent_sharing_groups_outside_hierarchy_help_text(@group),
           checkbox_options: { disabled: !can_change_prevent_sharing_groups_outside_hierarchy?(@group) }
-```
+  ```
 
 ### Available components
 
-When using the GitLab UI form builder the following components are available for use in HAML.
+When using the GitLab UI form builder, the following components are available for use in HAML.
 
 NOTE:
-Currently only `gitlab_ui_checkbox_component` is available but more components will be added in the future.
+Currently only `gitlab_ui_checkbox_component` is available but more components are planned.
 
 #### gitlab_ui_checkbox_component