Enable goldmark passthrough

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

config.toml

@@ -26,6 +26,13 @@ defaultContentLanguage = 'en'
     endLevel = 4
     ordered = false
     startLevel = 3
+  [markup.goldmark]
+    [markup.goldmark.extensions]
+      [markup.goldmark.extensions.passthrough]
+        enable = true
+        [markup.goldmark.extensions.passthrough.delimiters]
+          block = [['\[', '\]'], ['$$', '$$']]
+          inline = [['\(', '\)']]
 
 [languages]
   [languages.en]