Add checkbox to value of tracking call

- Track when a project is created with the readme checkbox checked.

app/controllers/projects_controller.rb

@@ -75,7 +75,11 @@ class ProjectsController < Projects::ApplicationController
     @project = ::Projects::CreateService.new(current_user, project_params(attributes: project_params_create_attributes)).execute
 
     if @project.saved?
-      experiment(:new_project_readme, actor: current_user).track(:created, property: active_new_project_tab)
+      experiment(:new_project_readme, actor: current_user).track(
+        :created,
+        property: active_new_project_tab,
+        value: project_params[:initialize_with_readme].to_i
+      )
       redirect_to(
         project_path(@project, custom_import_params),
         notice: _("Project '%{project_name}' was successfully created.") % { project_name: @project.name }

spec/controllers/projects_controller_spec.rb

@@ -416,7 +416,8 @@ RSpec.describe ProjectsController do
         path: 'foo',
         description: 'bar',
         namespace_id: user.namespace.id,
-        visibility_level: Gitlab::VisibilityLevel::PUBLIC
+        visibility_level: Gitlab::VisibilityLevel::PUBLIC,
+        initialize_with_readme: 1
       }
     end
 
@@ -425,9 +426,11 @@ RSpec.describe ProjectsController do
     end
 
     it 'tracks a created event for the new_project_readme experiment', :experiment do
-      expect(experiment(:new_project_readme)).to track(:created, property: 'blank').on_any_instance.with_context(
-        actor: user
-      )
+      expect(experiment(:new_project_readme)).to track(
+        :created,
+        property: 'blank',
+        value: 1
+      ).on_any_instance.with_context(actor: user)
 
       post :create, params: { project: project_params }
     end