Major clean up and improvements to vimwiki compatibility and documentation.

Reviewed-on: #1

crates/nuwiki-core/src/syntax/vimwiki/mod.rs

@@ -10,7 +10,7 @@ use crate::ast::DocumentNode;
 use crate::syntax::{Lexer, Parser, SyntaxPlugin};
 
 /// SyntaxPlugin facade: chains `VimwikiLexer` + `VimwikiParser` so the
-/// registry can hand out a single trait object per SPEC.md §6.3.
+/// registry can hand out a single trait object.
 #[derive(Debug, Default, Clone)]
 pub struct VimwikiSyntax;