Major clean up and improvements to vimwiki compatibility and documentation.

Reviewed-on: #1

crates/nuwiki-core/src/render/html.rs

@@ -3,12 +3,12 @@
 //! Walks a `DocumentNode` and writes HTML5 fragments. The renderer is
 //! configured with a link resolver (callback that turns a `LinkTarget` into
 //! a URL string) and, optionally, an enclosing template with substitution
-//! placeholders (SPEC.md §6.8 + §12.8).
+//! placeholders.
 //!
 //! Substitution model: `{{content}}` and `{{title}}` are computed from
 //! the rendered body and the document's metadata; `with_var(k, v)` /
-//! `with_vars(map)` add arbitrary key→value pairs (Phase 17 ships
-//! `{{date}}`, `{{root_path}}`, `{{toc}}`). Order: `{{content}}` is
+//! `with_vars(map)` add arbitrary key→value pairs (`{{date}}`,
+//! `{{root_path}}`, `{{toc}}`). Order: `{{content}}` is
 //! substituted first so a body that happens to contain a literal
 //! `{{title}}` isn't itself rewritten in the next pass.
 //!
@@ -44,7 +44,7 @@ pub struct HtmlRenderer {
     /// `color_dic`-style override: vimwiki colour-tag names → CSS
     /// values (`"red"` / `"#ffe119"` / `"oklch(…)"`). Unspecified
     /// names fall through to the default `class="color-<name>"`
-    /// rendering. Matches SPEC §12.11 `color_dic`.
+    /// rendering. Matches vimwiki's `color_dic`.
     colors: HashMap<String, String>,
 }
 
@@ -662,7 +662,7 @@ fn table_spans(table: &TableNode) -> Vec<Vec<CellLayout>> {
 
 // ===== Default link resolver =====
 
-/// Default `LinkResolver`. Mirrors the conventions in SPEC.md §9:
+/// Default `LinkResolver`. Mirrors the vimwiki link conventions:
 /// wiki pages become `path.html`; interwiki links land in sibling
 /// directories; diary entries land under `diary/`; file/local schemes
 /// use their literal path; anchor-only links collapse to a fragment.