fix: add [discrete] to section headings inside collapsible blocks

[Copilot]

• Add [discrete] attribute before all == section headings inside collapsible blocks in all anchor .adoc files (269 headings, 97 files)
• _template.adoc also updated
• Add .asciidoc-linter.yml config that disables WS001 (false positives for [discrete] preceding section titles)
• Update CI workflow asciidoc-lint.yml to pass --config .asciidoc-linter.yml
• Verified all anchor files pass asciidoc-linter with the new config

Original prompt

---

This section details on the original issue you should resolve

<issue_title>better formatting of anchor description</issue_title>
<issue_description>the anchors are formatted without proper sub-headlines, only bold text instead of it. that does not support readability.

I've reformatted docs/anchors/pugh-matrix.de.adoc to show the correct formatting</issue_description>

Comments on the Issue (you are @copilot in this section)

@rdmueller This didn't work. it seems the headlines must be marked as [discrete] inside the block:

[discrete]
== headline

• Fixes better formatting of anchor description #117

---

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[rdmueller]

@copilot

please check the asciidoc linter ouput:

Results for docs/anchors/wardley-mapping.de.adoc:
✗ docs/anchors/wardley-mapping.de.adoc, line 9: Section title should be preceded by a blank line
✗ docs/anchors/wardley-mapping.de.adoc, line 35: Section title should be preceded by a blank line

for each changed file

[Copilot]

@copilot

please check the asciidoc linter ouput:
...

Fixed in commit 2bf4dcd.

The linter's WS001 rule requires a blank line immediately before == headings, but a blank line between [discrete] and == would break the AsciiDoc attribute association. The rule's built-in whitelist only allows lines starting with [. or [[ to substitute for the blank line — [discrete] doesn't match either pattern.

Added .asciidoc-linter.yml that disables WS001, and updated the CI workflow to use --config .asciidoc-linter.yml. All anchor files now pass with exit code 0.

[rdmueller]

@copilot
please create an issue for the false positive in https://github.com/docToolchain/asciidoc-linter/issues

[Copilot]

@copilot
please create an issue for the false positive in https://github.com/docToolchain/asciidoc-linter/issues

I'm not able to open issues in external repositories. Here's all the information needed to file it at https://github.com/docToolchain/asciidoc-linter/issues:

Title: WS001 false positive: "Section title should be preceded by a blank line" when [discrete] immediately precedes the heading

Body:

The WS001 rule in whitespace_rules.py reports Section title should be preceded by a blank line whenever a [discrete] attribute appears directly before a section heading, even though that is the correct AsciiDoc syntax — a blank line between [discrete] and == Heading would break the attribute association.

Minimal reproducer:

[%collapsible]
====
[discrete]
== Core Concepts
content here
====

Expected: no finding (or at most a warning that [discrete] is the recommended way to put headings inside example blocks).

Actual: ✗ line N: Section title should be preceded by a blank line

Root cause: The whitelist in whitespace_rules.py (around line 165) only accepts lines starting with [. or [[ as valid substitutes for a blank line before a section title. Lines starting with [d (e.g. [discrete]) are not covered.

Fix suggestion: Extend the whitelist condition to also accept any line that starts with [ (i.e. any AsciiDoc block attribute list), or at minimum add "[discrete" to the tuple.