diff --git a/web/documentation/howtos.org b/web/documentation/howtos.org
index 0fd1a8a..8b887ca 100644
--- a/web/documentation/howtos.org
+++ b/web/documentation/howtos.org
@@ -1,131 +1,130 @@
 #+TITLE: GnuPG - HOWTOs
 #+STARTUP: showall
 #+SETUPFILE: "../share/setup.inc"
 
 
 * HOWTOs
 
   There are several HOWTOs available.
 
 ** GnuPG MiniHOWTO
 
    You may get the best overview about the GnuPG system by reading the
    mini HOWTO available in several formats:
 
 -  as on-line browsable HTML files (
    [[../howtos/ca/GPGMiniHowto.html][ca]] ·
    [[../howtos/de/index.html][de]] ·
    [[http://www.dewinter.com/gnupg_howto/english/GPGMiniHowto.html][en]] ·
    [[http://www.dewinter.com/gnupg_howto/spanish/index.html][es]] ·
    [[../howtos/fr/index.html][fr]] ·
    [[../howtos/it/GPGMiniHowto.html][it]] ·
    [[../howtos/tr/GPGMinikNasil.html][tr]] ·
    [[../howtos/vn/index.htm][vn]] ·
    [[../howtos/zh/index.html][zh]] )
 -  as one big HTML file (
    [[../howtos/ca/GPGMiniHowto_big.html][ca]] ·
    [[../howtos/it/GPGMiniHowto_big.html][it]] )
 -  as PDF (
    [[../howtos/ca/GPGMiniHowto.pdf][ca]] ·
    [[../howtos/de/GPGMiniHowto.pdf][de]] ·
    [[../howtos/it/GPGMiniHowto.pdf][it]] ·
    [[../howtos/vn/GPGMiniHowto.pdf][vn]] )
 -  in postscript format (
    [[../howtos/ca/GPGMiniHowto.ps][ca]] ·
    [[http://www.dewinter.com/gnupg_howto/english/GPGMiniHowto.ps][en]] ·
    [[../howtos/de/GPGMiniHowto.ps][de]] )
 -  as DVI file ( [[../howtos/ca/GPGMiniHowto.dvi][ca]] )
 -  in RTF format ( [[../howtos/ca/GPGMiniHowto.rtf][ca]] )
 -  as plain text (
    [[../howtos/ca/GPGMiniHowto.txt][ca]] ·
    [[http://www.dewinter.com/gnupg_howto/english/GPGMiniHowto.txt][en]] ·
    [[../howtos/it/GPGMiniHowto.txt][it]] )
 -  as SGML (
    [[../howtos/ca/GPGMiniHowto.sgml][ca]] ·
    [[../howtos/de/GPGMiniHowto.sgml][de]] ·
    [[http://www.dewinter.com/gnupg_howto/english/GPGMiniHowto.sgml][en]] ·
    [[../howtos/it/GPGMiniHowto.sgml][it]] ·
    [[../howtos/tr/GPGMinikNasil.sgml.gz][tr]] )
 -  as gzipped tarball of them all ( [[../howtos/ca/GPGMiniHowto.tar.gz][ca]] )
 
 
 ** GnuPG SmartcardHOWTO
 
    GnuPG supports the use of smartcards.  This HOWTO explains how to
    install and work with these cards.
 
    - as on-line browsable HTML files ( [[../howtos/card-howto/en/smartcard-howto.html][en]] )
    - as one big HTML file ( [[../howtos/card-howto/en/smartcard-howto-single.html][en]] )
    - as plain text ( [[../howtos/card-howto/en/smartcard-howto.txt][en]] )
 
    This smartcard howto is also available in the [[../download/git.org][source repository]].
 
 ** GnuPG Keysigning Party HOWTO
 
    Once you get familiar with GnuPG's mechanisms, you surely wouldn't
    miss one of its funnest (and useful) aspects: to meet your Internet
    buddies and get your key signed by as many of them as possible.
 
    But having to check tens or even hundreds of keys at a meeting may
    become quite frustrating. Here it is where this HOWTO by V. Alex
    Brennen comes in handy. It is a guide to understanding and
    organizing a PGP keysigning party. Keysigning parties help build
    and strengthen the web of trust which serves to make the use of
    GnuPG more secure.
 
    This HOWTO is available:
 
    -  as an on-line browsable set of HTML files (
    [[http://www.cryptnet.net/fdp/crypto/gpg-party/gpg-party.de.html][de]] ·
    [[http://www.cryptnet.net/fdp/crypto/keysigning_party/en/keysigning_party.html][en]] ·
    [[../howtos/es/gpg-party.html][es]] ·
    [[../howtos/it/keysigning_party.html][it]] ·
    [[http://www.cypherpunks.ru/KSP.html][ru]] ·
    [[http://www.cryptnet.net/fdp/crypto/gpg-party/gpg-party.si.html][si]] ·
    [[http://www.cryptnet.net/fdp/crypto/gpg-party/gpg-party.zh-TW.html.big5][zh-TW.big5]] ·
    [[http://www.cryptnet.net/fdp/crypto/gpg-party/gpg-party.zh-TW.html.euc-tw][zh-TW.euc-tw]] )
 
 ** Mutt-GnuPG HOWTO
 
    Firstly, because everyone should be using encryption and signatures
    in their email. Secondly, because there are absolutely no reason
    for you not to be using PGP-compatible software. Thirdly, because
    documentation is mostly geared toward someone who is already
    familiar with PGP.  Fourtly, because we like to promote both GnuPG
    and Mutt as free software project, for use in everyday
    communications. Lastly, because Justin R.  Miller likes writing
    tutorials.
 
    For all these reasons, you can find below a link to Justin's HOWTO
    on how to send and receive cryptographically signed and/or
    encrypted email with GnuPG and the [[http://www.mutt.org/][Mutt mail reader]].
 
    This HOWTO is available:
 
    -  as plain text ( [[http://codesorcery.net/old/mutt/][en]] )
 
 ** PHP-GnuPG HOWTO
 
    With the preponderance of javascript based OpenPGP solutions to
    various functions on the web, the desire to perform certain types
    of server side functions on a PHP driven website also has its
    merits.
 
    While PHP support for GPGME is either lacking, or too arcane for
    most developers to decipher, or both; Piotr Masełkowski at
    [[https://maslosoft.com/][Maslosoft]] has an alternative guide using the CLI programs.
 
    This HOWTO is available:
 
    -  as an online HTML article ( [[https://maslosoft.com/blog/2017/09/12/using-gpg-with-php-on-server/][en]] )
 
 ** GPGME Python Bindings HOWTO
 
    Written "in house" by the GnuPG Project core team, the GPGME Python
    Bindings HOWTO provides detailed instructions and examples for
    using the Python bindings of the GPGME API with Python 3 code.
 
    This HOWTO is available:
 
    -  in its original Emacs Org Mode source form in the GPGME repository ( [[https://dev.gnupg.org/source/gpgme/browse/master/lang/python/docs/GPGMEpythonHOWTOen.org][en]] )
-