fix spacing and line formatting in the function

Author: leemthompo

docs/reference/query-languages/esql/_snippets/functions/description/multi_match.md

@@ -138,8 +138,11 @@ public class MultiMatch extends FullTextFunction implements OptionalArgument, Po
         returnType = "boolean",
         preview = true,
         appliesTo = { @FunctionAppliesTo(lifeCycle = FunctionAppliesToLifecycle.COMING) },
-        description = "Use `MULTI_MATCH` to perform a <<query-dsl-multi-match-query,multi-match query>> on the specified field."
-            + "This query builds on the match query to allow multi-field queries.",
+        description = """
+            Use `MULTI_MATCH` to perform a
+            [multi-match query](/reference/query-languages/query-dsl/query-dsl-match-query.md#query-dsl-multi-match-query)
+            on the specified field.
+            This query builds on the match query to allow multi-field queries.""",
         examples = {
             @Example(file = "multi-match-function", tag = "multi-match-with-field"),
             @Example(file = "multi-match-function", tag = "multi-match-with-named-function-params") }