Update README

Author: tpeczek

README.md

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 JsonStreaming.NET is a solution that provides a set of libraries (`Ndjson.AsyncStreams.*`) for working with asynchronous streaming data sources over HTTP using JSONL (JSON Lines) and NDJSON (Newline Delimited JSON).
 
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 ## Documentation
 
 The documentation is available [here](https://tpeczek.github.io/json-streaming-dotnet/).