Per-project documentation

[fluffynuts]

It would be great to spend some time on documenting individual projects, even if only briefly in a README.md in each project's folder. The natural knock-on for this would be to make the readme available in the nuget package via the nuspec options outlined at https://devblogs.microsoft.com/nuget/add-a-readme-to-your-nuget-package/, specifically:

<package>
    <metadata>
    ...
    <readme>docs\README.md</readme>
    ...
    </metadata>
    <files>
    ...
    <file src="..\README.md" target="docs\" />
    ...
    </files>
</package>

this would:

• make it easier for someone not acquainted with the projects to use them
• surface this documentation at nuget.org

Projects to consider (probably best candidates in bold):

• PeanutButter.Async
• PeanutButter.TestUtils.Async
• PeanutButter.DatabaseHelpers
• PeanutButter.DatabaseHelpers.Testability
• PeanutButter.INI
• PeanutButter.SimpleHTTPServer
• PeanutButter.SimpleTcpServer
• PeanutButter.TempDb
• PeanutButter.TempDb.LocalDb
• PeanutButter.TempDb.MySql.Connector
• PeanutButter.TempDb.MySql.Data
• PeanutButter.TempDb.SqlCe
• PeanutButter.TempDb.Sqlite
• PeanutButter.TempRedis
• PeanutButter.RandomGenerators
• PeanutButter.TestUtils.Entity
• PeanutButter.TestUtils.Generic
• PeanutButter.TestUtils.MVC
• PeanutButter.TinyEventAggregator
• PeanutButter.DuckTyping
• PeanutButter.EasyArgs
• PeanutButter.FileSystem
• PeanutButter.FluentMigrator
• PeanutButter.JObjectExtensions
• PeanutButter.MVC
• PeanutButter.NetUtils
• PeanutButter.Utils
• PeanutButter.Utils.Entity
• PeanutButter.Utils.Windsor
• PeanutButter.XmlUtils
• PeanutButter.ServiceShell
• PeanutButter.WindowsServiceManagement