doc: fix comment in assert.md

PR-URL: #16335
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Vse Mozhet Byt <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Yuta Hiroto <[email protected]>
Reviewed-By: Anatoli Papirovski <[email protected]>

Author: umatoma

doc/api/assert.md

@@ -304,7 +304,7 @@ assert.notDeepEqual(obj1, obj3);
 // AssertionError: { a: { b: 1 } } notDeepEqual { a: { b: 1 } }
 
 assert.notDeepEqual(obj1, obj4);
-// OK, obj1 and obj2 are not deeply equal
+// OK, obj1 and obj4 are not deeply equal
 ```
 
 If the values are deeply equal, an `AssertionError` is thrown with a `message`