Update serializers.md

add a new third-party package in serializers section

Author: khaledsukkar2

docs/api-guide/serializers.md

@@ -1189,6 +1189,10 @@ The [drf-writable-nested][drf-writable-nested] package provides writable nested
 
 The [drf-encrypt-content][drf-encrypt-content] package helps you encrypt your data, serialized through ModelSerializer. It also contains some helper functions. Which helps you to encrypt your data.
 
+## Shapeless Serializers
+
+The [drf-shapeless-serializers][drf-shapeless-serializers] package provides dynamic serializer configuration capabilities, allowing runtime field selection, renaming, attribute modification, and nested relationship configuration without creating multiple serializer classes. It helps eliminate serializer boilerplate while providing flexible API responses.
+
 
 [cite]: https://groups.google.com/d/topic/django-users/sVFaOfQi4wY/discussion
 [relations]: relations.md
@@ -1212,3 +1216,4 @@ The [drf-encrypt-content][drf-encrypt-content] package helps you encrypt your da
 [djangorestframework-queryfields]: https://djangorestframework-queryfields.readthedocs.io/
 [drf-writable-nested]: https://github.com/beda-software/drf-writable-nested
 [drf-encrypt-content]: https://github.com/oguzhancelikarslan/drf-encrypt-content
+[drf-shapeless-serializers]: https://github.com/khaledsukkar2/drf-shapeless-serializers