Add privacy policy links (#1861)

* Add privacy policy links for hosting providers

* Add privacy policy links for calendar-contacts-sync

* Add privacy policy links for email-clients

* Add privacy policy links for file-encryption

* Add privacy policy links for password-managers

* Add privacy policy links for paste-services

* Add privacy policy links for productivity-tools

* Add privacy policy links for selfhosted-cloud

_includes/sections/file-encryption.html

@@ -24,6 +24,7 @@
   image="/assets/img/svg/3rd-party/gnupg.svg"
   description="<strong>GnuPG</strong> is a GPL-licensed alternative to the PGP suite of cryptographic software. GnuPG is compliant with RFC 4880, which is the current IETF standards track specification of OpenPGP. Current versions of PGP (and Veridis' Filecrypt) are interoperable with GnuPG and other OpenPGP-compliant systems. GnuPG is a part of the Free Software Foundation's GNU software project, and has received major funding from the German government."
   website="https://gnupg.org/"
+  privacy-policy="https://gnupg.org/privacy-policy.html"
   forum="https://forum.privacytools.io/t/discussion-gnupg-file-encryption/1533"
   git="https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git"
   windows="https://gpg4win.org/download.html"