[JDH Template] add all Guideline elements

[biumiamy]

Let's update the template in accordance with the guideline!

• explain each element from the guidline and insert it to guide authors step by step
• topics like citations cannot be implemented unless Zotero is already integrated, but examples can be shown similar to this

[eliselavy]

@biumiamy here is example how to include page
and the active creation of a home. (<cite id="35qhd"><a href="#zotero%7C20217732%2F6QS5ZLRL">(Jäger 2018)</a></cite>, p. 26; <cite id="9v4hi"><a href="#zotero%7C20217732%2FCBXIFRVG">

preview here
markdown here