Is there a formal specification for authoring plain text documents like they (mostly) are on http://www.tldp.org/HOWTO/text/?
If so, what is it called? Where is it documented?
I'm looking for a guide/spec that would state the formatting rules like "break sections apart with the
- character repeated the full length of the screen," etc. Basically I'm wondering if there's a manual I can read that outlines the rules for authoring documents like these in plain text, or if I should just do my best to mimic it.
Aside: I noticed that several of these text documents don't follow 100% exactly the same format, though they all look roughly alike. Are there different versions of this specification, or is this just personal preference by the authors?