app/views/notifications/started.text.erb
<%= @actor.name %> has started your story '<%= @story.title %>'.
<% if (@story.estimate.nil? || @story.estimate == 0) %>
<% if @story.story_type != 'feature' %>
This is either a bug or a chore There is no estimation. Expect the sprint velocity to decrease.
<% else %>
This story is NOT estimated. Ask <%= @actor.name %> to add proper estimation before implementation!
<% end %>
<% else %>
The estimation of this story is <%= @story.estimate %> points.
<% end %>
<%= project_url @story.project %>#story-<%= @story.id %>