Yiliu/master/faq

Created by: flora8984461

Refer to https://lts.eclipse.org/faq-page

remove the user card, remove sign in button, remove the imageless avatar.

Actually, I feel a little unnecessary to have individual page for each question, but the original page has it, so I create them. pls feel free to let me know if I should remove them? @chrisguindon