Incorporate feedback from reviewer

Author: deining

userguide/content/en/docs/adding-content/diagrams-and-formulae/index.md

@@ -81,14 +81,8 @@ markup:
       passthrough:
         enable: true
         delimiters:
-          block:
-          - - \[
-            - \]
-          - - $$
-            - $$
-          inline:
-          - - \(
-            - \)
+          block: [['\[', '\]'], ['$$', '$$']]
+          inline: [['\(', '\)']]
 {{< /tab >}}
 {{< tab header="hugo.json" lang="json" >}}
 {

userguide/hugo.yaml

@@ -37,28 +37,10 @@ markup:
       passthrough:
         enable: true
         delimiters:
-          block:
-          - - \[
-            - \]
-          - - $$
-            - $$
-          inline:
-          - - \(
-            - \)
+          block: [['\[', '\]'], ['$$', '$$']]
+          inline: [['\(', '\)']]
     renderer:
       unsafe: true
-    extensions:
-      passthrough:
-        enable: true
-        delimiters:
-          block:
-          - - \[
-            - \]
-          - - $$
-            - $$
-          inline:
-          - - \(
-            - \)
   highlight:
     noClasses: false # Required for dark-mode
 
@@ -143,10 +125,6 @@ params:
     enable: true
   drawio:
     enable: true
-  katex:
-    enable: false
-    mhchem:
-      enable: false
 
 taxonomies:
   tag: tags