Update copy of milestones on project page & project submit

[RadarDAO]

On project page

Change this to Funding goals to `Milestones

on project submit change copy to

We believe that building is an evolutionary process and we need achievable milestones to help reach it, please list your milestones, big or small.

You can choose to set ‘funding milestones’ (what you’ll do if you reach certain funding) or ‘numbered milestones’ (goal based objectives irrelevant of funding)

Please put a "-" for the funding amount if you want to add numbered milestones: e.g Milestone 1, Milestone 2

You can also leave this section blank if you don’t want to set any milestones.