Change code example type

The new docs site uses `console` instead of `terminal` to be compatible with Pygments.

private/bufpkg/bufcobra/markdown.go

@@ -104,7 +104,7 @@ func generateMarkdownPage(
 	p("\n\n")
 	if command.Runnable() {
 		p("### Usage\n")
-		p("```terminal\n$ %s\n```\n\n", command.UseLine())
+		p("```console\n$ %s\n```\n\n", command.UseLine())
 	}
 	if len(command.Long) > 0 {
 		p("### Description\n\n")