content: Replace calls to the code shortcode with fenced code blocks

content/en/functions/transform/PortableText.md

@@ -27,7 +27,7 @@ Since the Portable Text gets converted to Markdown before it gets passed to Hugo
 
 ### Content Adapter
 
-{{< code file=content/_content.gotmpl copy=true >}}
+```go-html-template {file="content/_content.gotmpl" copy=true}
 {{ $projectID := "mysanityprojectid" }}
 {{ $useCached := true }}
 {{ $api := "api" }}
@@ -91,14 +91,13 @@ Since the Portable Text gets converted to Markdown before it gets passed to Hugo
   }}
   {{ $.AddPage $page }}
 {{ end }}
-{{< /code >}}
-
+```
 
 ### Sanity setup
 
 Below outlines a suitable Sanity studio setup for the above example.
 
-{{< code file=sanity.config.ts copy=true >}}
+```ts {file="sanity.config.ts" copy=true}
 import {defineConfig} from 'sanity'
 import {structureTool} from 'sanity/structure'
 import {visionTool} from '@sanity/vision'
@@ -106,7 +105,6 @@ import {schemaTypes} from './schemaTypes'
 import {media} from 'sanity-plugin-media'
 import {codeInput} from '@sanity/code-input'
 
-
 export default defineConfig({
   name: 'default',
   title: 'my-sanity-project',
@@ -120,12 +118,11 @@ export default defineConfig({
     types: schemaTypes,
   },
 })
-
-{{< /code >}}
+```
 
 Type/schema definition:
 
-{{< code file=schemaTypes/postType.ts copy=true >}}
+```ts {file="schemaTypes/postType.ts" copy=true}
 import {defineField, defineType} from 'sanity'
 
 export const postType = defineType({
@@ -180,7 +177,7 @@ export const postType = defineType({
     }),
   ],
 })
-{{< /code >}}
+```
 
 Note that the above requires some additional plugins to be installed:
 
@@ -188,11 +185,11 @@ Note that the above requires some additional plugins to be installed:
 npm i sanity-plugin-media @sanity/code-input
 ```
 
-{{< code file=schemaTypes/index.ts copy=true >}}
+```ts {file="schemaTypes/index.ts" copy=true}
 import {postType} from './postType'
 
 export const schemaTypes = [postType]
-{{< /code >}}
+```
 
 ## Server setup
 

content/en/functions/transform/ToMath.md

@@ -117,7 +117,7 @@ Create a [passthrough render hook] to capture and render the LaTeX markup.
 
 [passthrough render hook]: /render-hooks/passthrough/
 
-{{< code file=layouts/_default/_markup/render-passthrough.html copy=true >}}
+```go-html-template {file="layouts/_default/_markup/render-passthrough.html" copy=true}
 {{- $opts := dict "output" "htmlAndMathml" "displayMode" (eq .Type "block") }}
 {{- with try (transform.ToMath .Inner $opts) }}
   {{- with .Err }}
@@ -127,20 +127,20 @@ Create a [passthrough render hook] to capture and render the LaTeX markup.
     {{- $.Page.Store.Set "hasMath" true }}
   {{- end }}
 {{- end -}}
-{{< /code >}}
+```
 
 ### Step 3
 
 In your base template, conditionally include the KaTeX CSS within the head element.
 
-{{< code file=layouts/_default/baseof.html copy=true >}}
+```go-html-template {file="layouts/_default/baseof.html" copy=true}
 <head>
   {{ $noop := .WordCount }}
   {{ if .Page.Store.Get "hasMath" }}
     <link href="https://cdn.jsdelivr.net/npm/katex@0.16.21/dist/katex.min.css" rel="stylesheet">
   {{ end }}
 </head>
-{{< /code >}}
+```
 
 In the above, note the use of a [noop](g) statement to force content rendering before we check the value of `hasMath` with the `Store.Get` method.
 
@@ -148,7 +148,7 @@ In the above, note the use of a [noop](g) statement to force content rendering b
 
 Add some mathematical markup to your content, then test.
 
-{{< code file=content/example.md >}}
+```text {file="content/example.md"}
 This is an inline \(a^*=x-b^*\) equation.
 
 These are block equations:
@@ -156,7 +156,7 @@ These are block equations:
 \[a^*=x-b^*\]
 
 $$a^*=x-b^*$$
-{{< /code >}}
+```
 
 ## Chemistry
 

content/en/functions/transform/XMLEscape.md

@@ -32,9 +32,9 @@ For example:
 
 When using `transform.XMLEscape` in a template rendered by Go's [html/template] package, declare the string to be safe HTML to avoid double escaping. For example, in an RSS template:
 
-{{< code file=layouts/_default/rss.xml >}}
+```xml {file="layouts/_default/rss.xml"}
 <description>{{ .Summary | transform.XMLEscape | safeHTML }}</description>
-{{< /code >}}
+```
 
 [disallowed characters]: https://www.w3.org/TR/xml/#charsets
 [html entities]: https://developer.mozilla.org/en-us/docs/glossary/entity