gnucash-htdocs master: Multiple changes pushed

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-htdocs/commit/1eb06866 (commit)
	 via  https://github.com/Gnucash/gnucash-htdocs/commit/28594c01 (commit)
	from  https://github.com/Gnucash/gnucash-htdocs/commit/745fd988 (commit)



commit 1eb068665278992a38986b6921752f2fe2a98b65
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun Mar 31 16:26:03 2024 -0700

    Announce release of GnuCash 5.6.

commit 28594c01de723041cc5d90b9e2a115ec1559afc6
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun Mar 31 15:52:50 2024 -0700

    Bug 799261 - Webpage Outdated
    
    Renove stale book reference and obsolete GnuCash 4.0 Released banner.



Summary of changes:
 externals/global_params.php |   6 +-
 externals/menu.phtml        |  18 +-----
 index.phtml                 |   6 --
 new_features-4.0.phtml      | 139 --------------------------------------------
 news/231217-5.5.news        |   3 +-
 news/240331-5.6.news        | 136 +++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 142 insertions(+), 166 deletions(-)
 delete mode 100644 new_features-4.0.phtml
 create mode 100644 news/240331-5.6.news