Added Privacy and Terms footer links (#3087)

Author: Brian Vaughn

src/components/LayoutFooter/Footer.js

@@ -100,6 +100,12 @@ const Footer = ({layoutHasSidebar = false}: {layoutHasSidebar: boolean}) => (
           <FooterNav layoutHasSidebar={layoutHasSidebar}>
             <MetaTitle onDark={true}>{navFooter.more.title}</MetaTitle>
             <SectionLinks links={navFooter.more.items} />
+            <ExternalFooterLink href="https://opensource.facebook.com/legal/privacy">
+              Privacy
+            </ExternalFooterLink>
+            <ExternalFooterLink href="https://opensource.facebook.com/legal/terms">
+              Terms
+            </ExternalFooterLink>
           </FooterNav>
         </div>
         <section