Fix function path

Author: Dhghomon

src/content/doc-surrealql/functions/database/record.mdx

@@ -149,7 +149,7 @@ RETURN record::tb(person:tobie);
 The `record::is_edge` function checks to see if the value passed in is a graph edge.
 
 ```surql title="API DEFINITION"
-record::is::edge(record | string) -> bool
+record::is_edge(record | string) -> bool
 ```
 
 ```surql