Update latest versions in documentation

[Niharikadutta]

Updating following in .NET for Apache Spark documentation:

1. Latest v1.0.0 release of Spark .NET.
2. Updating to latest .NET core 3.1 version.
3. Updating latest naming convention of microsoft-spark jar.
4. Fixing errors here and there.

Fixes Spark .NET issue

Preview URLs:

File Type	File Name	Published Url
Content	docs/spark/how-to-guides/broadcast-guide.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/broadcast-guide?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/connect-to-mongo-db.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/connect-to-mongo-db?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/databricks-deploy-methods.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/databricks-deploy-methods?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/deploy-worker-udf-binaries.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/deploy-worker-udf-binaries?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/dotnet-spark-jupyter-notebooks.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/dotnet-spark-jupyter-notebooks?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/hdinsight-deploy-methods.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/hdinsight-deploy-methods?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/hdinsight-notebook-installation.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/hdinsight-notebook-installation?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/java-udf-from-dotnet.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/java-udf-from-dotnet?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/ubuntu-instructions.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/ubuntu-instructions?branch=pr-en-us-21247
Content	docs/spark/how-to-guides/windows-instructions.md	https://review.docs.microsoft.com/en-us/dotnet/spark/how-to-guides/windows-instructions?branch=pr-en-us-21247
Content	docs/spark/tutorials/amazon-emr-spark-deployment.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/amazon-emr-spark-deployment?branch=pr-en-us-21247
Content	docs/spark/tutorials/batch-processing.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/batch-processing?branch=pr-en-us-21247
Content	docs/spark/tutorials/databricks-deployment.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/databricks-deployment?branch=pr-en-us-21247
Content	docs/spark/tutorials/get-started.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/get-started?branch=pr-en-us-21247
Content	docs/spark/tutorials/hdinsight-deployment.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/hdinsight-deployment?branch=pr-en-us-21247
Content	docs/spark/tutorials/ml-sentiment-analysis.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/ml-sentiment-analysis?branch=pr-en-us-21247
Content	docs/spark/tutorials/streaming.md	https://review.docs.microsoft.com/en-us/dotnet/spark/tutorials/streaming?branch=pr-en-us-21247
Content	docs/spark/what-is-apache-spark-dotnet.md	https://review.docs.microsoft.com/en-us/dotnet/spark/what-is-apache-spark-dotnet?branch=pr-en-us-21247

[luisquintanilla]

Nice job! Added a few comments.

[luisquintanilla]

Leave as is or find shorter version for subheading. Formatting style guidelines ask for keeping headings to 2 lines (https://docs.microsoft.com/en-us/style-guide/scannable-content/headings#formatting-headings)

[Niharikadutta]

I have reverted this change although I am not sure I understand how the previous change offends the guidelines asking to keep headings to 2 lines, there was just one line to the heading no? Perhaps I am missing something.

[luisquintanilla]

The text is in one line. However, the headers on the sidebar wrap text. This is what the current one looks like. If you were to expand to Microsoft.Spark.Worker, it would go into 3+ lines.

[Niharikadutta]

@luisquintanilla Thank you so much for the review, I have addressed all your comments, please let me know if the changes look ok. Thanks!

[luisquintanilla]

Thanks @Niharikadutta for making all the changes. Looks good to me. Approving.