docs: update signature of function split in the quick reference

Author: josdejong

docs/index.html

@@ -177,7 +177,7 @@ <h1>JSON Query</h1>
                 </li>
                 <li>
                   <a href="https://github.com/jsonquerylang/jsonquery/blob/main/reference/functions.md#split"
-                    target="_blank"><code>split(separator)</code></a>
+                    target="_blank"><code>split(text, separator)</code></a>
                 </li>
                 <li>
                   <a href="https://github.com/jsonquerylang/jsonquery/blob/main/reference/functions.md#uniq"