Improve .NET Compatibility Statement

After getting several questions about our support for various .NET versions, we have agreed to refactor the documentation in the getting started intro section and the compatibility section to help make it more clear.

1. Refactoring the Intro Section: Installing the SDK.

Current Paragraph:

The Couchbase .NET SDK targets and is tested with .NET Standard 2.0 and 2.1, which in turn supports .NET Framework 4.6.2+ and .NET Core (e.g. netcoreapp) 2.1. A full list of supported platforms can be found in the .NET Standard documentation. The SDK also may use some dependencies that have not yet made it into .NET Standard; these can be enabled by targeting .netcoreapp2.1 or .netcoreapp3.0. Eventually as they are added to the standard, these platform targets will be removed. Other .NET implementations might work but are not tested and are outside of the scope of our technical support organization.

New Paragraph:

The Couchbase .NET SDK is compatible with .NET Standard 2.0 and .NET Standard 2.1, which means that it is compatible with .NET Framework 4.6.2+, .NET 5.0, .NET 6.0, and .NET Core 3.1. The .NET Standard documentation and .NET Standard version chart may be useful to help understand other available options. We strongly recommend using the latest version of .NET that is officially supported by Microsoft. Other .NET implementations might work but are not tested and are outside of the scope for technical support.

2. Refactoring the Compatibility Section

Perhaps we restate the new comments above and then include a compatibility chart (similar to what we have seen with other vendors) to help make it abundantly clear. We just need to use caution to make sure we don't state explicit support of some of the less common implementations (which should work but we don't currently have the bandwidth to test).

NOTE: In the intro section, it may be useful to provide a link to our compatibility section as well.