Use backticks when referencing predicate in docs.

Trivial change but this prevents the HTML output from being erroneously italicized.

diff --git a/src/lib/clpz.pl b/src/lib/clpz.pl
index 6834a379627816afd7cb4709a38a9c6cc22fd85c..b14546bc19dd3197b2e3022e61160a9667d7fca9 100644 (file)
--- a/src/lib/clpz.pl
+++ b/src/lib/clpz.pl
@@ -458,7 +458,7 @@ replacements of these low-level arithmetic predicates, often yielding
 more general programs. See [`n_factorial/2`](#clpz-factorial) for an
 example.
 
-This library uses goal_expansion/2 to automatically rewrite
+This library uses `goal_expansion/2` to automatically rewrite
 constraints at compilation time so that low-level arithmetic
 predicates are _automatically_ used whenever possible. For example,
 the predicate: