Add README example for usage of recursive schemata in JS (#1965)
Add README example for usage of recursive schemata in JS (#1965)

* update js readme

* add negative example

* fix typo

* update comment

* add one more comment

Co-authored-by: Benjamin Graedig <efb6fa7929be0e03e88dc9d4a6a0fcb7984bd05b@flaschenpost.de>
apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro,apache/avro