add link to update dietary restrictions on invite

update text on the invite page to encourage updating member details with
any dietary restrictions rather than emailing the organiser about them.

Author: mikej

app/views/invitation/_coach.html.haml

@@ -12,4 +12,4 @@
   - if @workshop.virtual?
     = t('workshop.virtual.invitation.shared_intro_3_html', email_link: mail_to(@workshop.chapter.email, @workshop.chapter.email))
   - else
-    %p= t('workshop.invitation.shared_intro_4_html', email_link: mail_to(@workshop.chapter.email, @workshop.chapter.email).html_safe)
+    %p= t('workshop.invitation.shared_intro_4_html', update_your_details_link: link_to(t('members.update_your_details_lower'), edit_member_path).html_safe)

config/locales/en.yml

@@ -167,7 +167,7 @@ en:
       student_intro_1: 'In our workshops, you will get to go through any of our available tutorials, ask for programming advice or get help on your own projects.'
       student_intro_2: 'In case you are unable to attend after you RSVP, please make sure you come back and update your attendance. We have limited space and do a coaches request depending on the number of attending students.'
       student_intro_3_html: 'Please make sure you <b>bring your laptop</b> with you.'
-      shared_intro_4_html: 'PS: There will also be food at the workshop. We always make an effort to have vegetarian, vegan and gluten-free options available. If you have any other dietary requirements, send us an email at %{email_link}.'
+      shared_intro_4_html: 'PS: There will also be food at the workshop. If you have any specific dietary restrictions, please %{update_your_details_link} to let us know about them.'
   workshop_invitation:
     coach_skills_tooltip: Keeping your skills up-to-date enables organisers to plan ahead and makes running workshops easier.
   meeting:
@@ -336,6 +336,8 @@ en:
     sign_up_as_student_disclaimer: "* I understand and meet the eligibility criteria."
     sign_up_as_coach: "Join us as a coach"
     code_of_conduct: "code of conduct"
+    update_your_details: "Update your details"
+    update_your_details_lower: "update your details"
     new:
       intro_html: "We provide a welcoming, inclusive, and supportive learning environment, with a strict zero-tolerance policy for any form of harassment or inappropriate behavior. Please take a moment to review our <a href='%{link}'>code of conduct</a> before signing up."
       students: