I am a little green to Salesforce so I apologise in advance if this is a simple hack that I did not know. 

Scenario: I would like to email client's weekly with the status of their milestones of a project. Each Project has multiple milestones. The additional layer of complexity is that some milestones are internal (and we have a checkbox called Publicly Tracked to filter for the external facing milestones). How do I create a template that show the related milestones for a project where Publicly Tracked = Yes

I have been following the tutorial on https://www.vandeveldejan.com/tips/for-admins/15-the-not-so-scary-visualforce-email-template-as-order-confirmation-email