Make AsciiBib examples realistic and complete

[ronaldtse]

Right now the examples used are half-true and half-made-up. We need to migrate to realistic examples with no filler information. I suggest we use ISO 19115-3 as a document example (since the content was already there).

The relevant files are:

• _specs/asciibib-path.adoc
• _specs/asciibib-nested.adoc

@manuel489 @anermina do you have time for this? Thanks!

[manuelfuenmayor]

@ronaldtse , do you mean, for example, to pass from this:

[source,asciidoc]
----
[[iso123]]
[%bibitem]
== Rubber latex -- Sampling
docid::
  type::: ISO
  id::: ISO 123
type:: standard
----

to something like this (?):

[source,asciidoc]
----
[[iso19115-3]]
[%bibitem]
== {blank}
docid::
  type::: ISO
  id::: 19115-3
type:: standard
----

[ronaldtse]

Yes indeed! More realistic examples so people can really understand without getting confused. Fake examples are often hard to follow.

[manuelfuenmayor]

Hi @ronaldtse , apparently, I don't have enough privileges to push in this repository. Could you please take action on it?

[ronaldtse]

@manuel489 you have access now. Can you push to a new branch and make a PR? Thanks!

[manuelfuenmayor]

PR added in #12