Use short token for code highlighting

Signed-off-by: Stephen Finucane <stephen@that.guru>
Closes: #5349

Author: stephenfin

docs/content/en/content-management/formats.md

@@ -42,7 +42,7 @@ tool on your machine to be able to use these formats.
 Hugo passes reasonable default arguments to these external helpers by default:
 
 - `asciidoctor`: `--no-header-footer -`
-- `rst2html`: `--leave-comments --initial-header-level=2`
+- `rst2html`: `--leave-comments --initial-header-level=2 --syntax-highlight=short`
 - `pandoc`: `--mathjax`
 
 {{% note %}}

markup/rst/convert.go

@@ -82,10 +82,10 @@ func (c *rstConverter) getRstContent(src []byte, ctx converter.DocumentContext)
 	// handle Windows manually because it doesn't do shebangs
 	if runtime.GOOS == "windows" {
 		pythonBinary, _ := internal.GetPythonBinaryAndExecPath()
-		args := []string{binaryPath, "--leave-comments", "--initial-header-level=2"}
+		args := []string{binaryPath, "--leave-comments", "--initial-header-level=2", "--syntax-highlight=short"}
 		result, err = internal.ExternallyRenderContent(c.cfg, ctx, src, pythonBinary, args)
 	} else {
-		args := []string{"--leave-comments", "--initial-header-level=2"}
+		args := []string{"--leave-comments", "--initial-header-level=2", "--syntax-highlight=short"}
 		result, err = internal.ExternallyRenderContent(c.cfg, ctx, src, binaryName, args)
 	}