Update COMMUNITY-SAMPLES.md (dotnet#827)

Author: Bri Achtman

docs/COMMUNITY-SAMPLES.md

@@ -6,6 +6,7 @@ However, note that Microsoft does not maintain the samples in the list below.
 
 | Name                                | Description                                                                                 | ML Tasks or area of focus                                                               | API status                                                               | Owner                       |
 |-------------------------------------|---------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|--------------------------------------------------------------------------|-----------------------------|
+| [COVID-19 Exploratory Data Analysis using .NET](https://github.com/praveenraghuvanshi1512/covid-19)  | Use .NET DataFrame API and ML.NET to perform analysis on COVID-19 dataset and visualize the trends of virus spread in various countries | forecasting model | ML.NET v1.5 | Kudos for Praveen Raghuvanshi (praveenraghuvanshi1512)      |
 | [Rom-com or not rom-com](https://github.com/davidgristwood/rom-com-or-not-rom-com/)  | ML.NET project designed to run a machine learning model over a text document and determine if it exhibits the classic characteristics of a rom-com film script. | multi-class classification model | ML.NET v1.4 | Kudos for David Gristwood (davidgristwood)      |
 | [Photo-Search](https://github.com/Tak-Au/Photo-Search)  | Sample WPF app running an ONNX model which was previously built with Keras and exported to ONNX model format. | Deep Learning, Image classification | ML.NET v0.9 and .NET Core 3.0 | Kudos for Tak-Au      |
 | [ML.NET sample running on 'TRY .NET'](https://github.com/CESARDELATORRE/MLNET-WITH-TRYDOTNET-SAMPLE)  | This sample is compatible with [Try .NET](https://github.com/dotnet/try). | Binary Classification | Updated to ML.NET v1.2 | .NET team |