Use a literal block in the field data docs.
Currently we use `quote`, which renders a bit strangely on the website.
@@ -31,12 +31,10 @@ why fielddata is disabled by default.
If you try to sort, aggregate, or access values from a script on a `text`
field, you will see this exception:
-[quote]
---
+[literal]
Fielddata is disabled on text fields by default. Set `fielddata=true` on
[`your_field_name`] in order to load fielddata in memory by uninverting the
inverted index. Note that this can however use significant memory.
---
[[before-enabling-fielddata]]
==== Before enabling fielddata
