Upgrade markdown 2025

.gitignore

learning-markdown/MarkDown.md

learning-markdown/assets/install_all.bash

learning-markdown/example/advanced.md

learning-markdown/example/assets/columns.lua

learning-markdown/example/report.md

...arkdown/example/tex_templates/after-header-includes.latex

learning-markdown/example/tex_templates/common.latex

learning-markdown/example/tex_templates/eisvogel-added.latex

...-markdown/example/tex_templates/eisvogel-title-page.latex

learning-markdown/example/tex_templates/eisvogel.latex

learning-markdown/example/tex_templates/font-settings.latex

learning-markdown/example/tex_templates/fonts.latex

learning-markdown/example/tex_templates/hypersetup.latex

learning-markdown/example/tex_templates/passoptions.latex