update README

README.md

@@ -1,14 +1,20 @@
 parquet-extra
-======
+=============
 
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 [![Scala Steward badge](https://img.shields.io/badge/Scala_Steward-helping-brightgreen.svg?style=flat&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAQCAMAAAARSr4IAAAAVFBMVEUAAACHjojlOy5NWlrKzcYRKjGFjIbp293YycuLa3pYY2LSqql4f3pCUFTgSjNodYRmcXUsPD/NTTbjRS+2jomhgnzNc223cGvZS0HaSD0XLjbaSjElhIr+AAAAAXRSTlMAQObYZgAAAHlJREFUCNdNyosOwyAIhWHAQS1Vt7a77/3fcxxdmv0xwmckutAR1nkm4ggbyEcg/wWmlGLDAA3oL50xi6fk5ffZ3E2E3QfZDCcCN2YtbEWZt+Drc6u6rlqv7Uk0LdKqqr5rk2UCRXOk0vmQKGfc94nOJyQjouF9H/wCc9gECEYfONoAAAAASUVORK5CYII=)](https://scala-steward.org)
 
-Scala macros for generating Parquet column projections and filter predicates.
+A collection of [Apache Parquet](http://parquet.apache.org/) add-on modules.
+
+- `parquet-avro` - Scala macros for generating column projections and filter predicates from lambda functions.
+- `parquet-tensorflow` - [TensorFlow](https://www.tensorflow.org/) `Example` read/write support.
+- `parquet-types` - Scala case class read/write support powered by [Magnolia](https://github.com/propensive/magnolia).
 
 ## License
 
+Copyright 2019 Neville Li.
+
 Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0