Add comments to the code [SCI-152]

app/controllers/my_module_comments_controller.rb

@@ -77,8 +77,8 @@ class MyModuleCommentsController < ApplicationController
               }
             ),
             date: @comment.created_at.strftime('%d.%m.%Y'),
-            linked_id: @my_module.id,
-            counter: @my_module.task_comments.count
+            linked_id: @my_module.id, # Used for counter badge
+            counter: @my_module.task_comments.count # Used for counter badge
           },
           status: :created
         end
@@ -155,6 +155,7 @@ class MyModuleCommentsController < ApplicationController
               module: @my_module.name
             )
           )
+          # 'counter' and 'linked_id' are used for counter badge
           render json: { linked_id: @my_module.id,
                          counter: @my_module.task_comments.count },
                  status: :ok

app/controllers/project_comments_controller.rb

@@ -146,6 +146,7 @@ class ProjectCommentsController < ApplicationController
               project: @project.name
             )
           )
+          # 'counter' and 'linked_id' are used for counter badge
           render json: { linked_id: @project.id,
                          counter: @project.project_comments.count },
                  status: :ok

app/controllers/user_my_modules_controller.rb

@@ -15,7 +15,7 @@ class UserMyModulesController < ApplicationController
             partial: 'index.html.erb'
           ),
           my_module_id: @my_module.id,
-          counter: @my_module.users.count
+          counter: @my_module.users.count # Used for counter badge
         }
       end
     end

app/controllers/user_projects_controller.rb

@@ -19,7 +19,7 @@ class UserProjectsController < ApplicationController
             partial: 'index.html.erb'
           ),
           project_id: @project.id,
-          counter: @project.users.count
+          counter: @project.users.count # Used for counter badge
         }
       end
     end