Allow using note filename in double brackets

_plugins/bidirectional_links_generator.rb

@@ -13,10 +13,18 @@ class BidirectionalLinksGenerator < Jekyll::Generator
     # anchor tag elements (<a>) with "internal-link" CSS class
     all_docs.each do |current_note|
       all_docs.each do |note_potentially_linked_to|
+        # Replace double-bracketed links using note title
         current_note.content = current_note.content.gsub(
           /\[\[#{note_potentially_linked_to.data['title']}\]\]/i,
           "<a class='internal-link' href='#{note_potentially_linked_to.url}'>#{note_potentially_linked_to.data['title']}</a>"
         )
+
+        # Replace double-bracketed links using note filename
+        title_from_filename = File.basename(note_potentially_linked_to.basename, File.extname(note_potentially_linked_to.basename)).gsub('_', ' ').gsub('-', ' ').capitalize
+        current_note.content = current_note.content.gsub(
+          /\[\[#{title_from_filename}\]\]/i,
+          "<a class='internal-link' href='#{note_potentially_linked_to.url}'>#{title_from_filename}</a>"
+        )
       end
 
       # At this point, all remaining double-bracket-wrapped words are