Update documentation/src/main/asciidoc/querylanguage/Expressions.adoc

Co-authored-by: Gavin King <[email protected]>

Author: lucamolteni

documentation/src/main/asciidoc/querylanguage/Expressions.adoc

@@ -622,7 +622,7 @@ select str(id) from Order
 ===== Extracting the ordinal value of an enum
 
 The function `ordinal(x)` extracts the ordinal value of an enum.
-When the enum is mapped as `ORDINAL` it's a synonym for `cast(x as Integer)` .
+When the enum is mapped as `ORDINAL` it's a synonym for ``cast(x as Integer)``.
 
 [source, hql]
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