Simply does not work

[WilheJo]

Hi!

The example does not work.

It just puts the plain contents of the "tmp-local-tree-yaml" at the end of the page.
So no navigation tree is built by the template.

I made some "fixes" to have at least the yaml correctly parsed to get some data into the contents variable of the template.
However, wasn't enough... no idea what makes it go south...

I expect, that this is caused by some unexpected behavior by one of the dependencies...

Some version info (besides the rest of my up-to-date manjaro):

[hans@Rechenknecht docs]$ pandoc --version
pandoc 2.17.1.1
Compiled with pandoc-types 1.22.2, texmath 0.12.5, skylighting 0.12.3,
citeproc 0.6.0.1, ipynb 0.2
User data directory: /home/hans/.pandoc
Copyright (C) 2006-2022 John MacFarlane. Web:  https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.
[hans@Rechenknecht docs]$ tree --version
tree v2.0.2 (c) 1996 - 2022 by Steve Baker, Thomas Moore, Francesc Rocher, Florian Sesser, Kyosuke Tokoro 
[hans@Rechenknecht docs]$ bash --version
GNU bash, Version 5.1.16(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2020 Free Software Foundation, Inc.
Lizenz GPLv3+: GNU GPL Version 3 oder jünger <http://gnu.org/licenses/gpl.html>'''

[hoijui]

See #10