doc: update README

README.md

@@ -5,11 +5,11 @@
 [![SwiftFormat](https://img.shields.io/badge/SwfitFormat-enabled-A166E6)](https://github.com/nicklockwood/SwiftFormat)
 ![GitHub Actions CI](https://github.com/jhrcook/TextRank/workflows/GitHub%20Actions%20CI/badge.svg)
 
-> This package is still in development and non-functional.
-
 A Swift package that implements the ['TextRank' algorithm](https://web.eecs.umich.edu/~mihalcea/papers/mihalcea.emnlp04.pdf) for summarization and keyword extraction.
 It is based off of the [original Python implementation](https://github.com/summanlp/textrank).
 
+*This package is functional, but young. Please open an issue if you find any bugs or have any feature requests.*
+
 Stop words were acquired from [Ranks NL](https://www.ranks.nl/stopwords).
 Please open an issue to request additional language support.