Update the readme.md as it was very out of date!
Remove refs to version 1.0 and version 2.0
Link to the nuget page!
Talk about semver and the upgrade from v3 to v4 and async
Take a lot of cues from https://github.com/raoulmillais/node-7digital-api/blob/master/README.md
- start with "about 7digital", "What is this code" and "you will need"
- mention and link to the api key signup microsite, about.7digital.com and developer.7digital.com
- be clear about nuget install instructions and nuget package name
Added tests and implementation for package data
Added further test and implementation to check Formats item within package data
[SRCH-1333] MF/MO completed package tests and implementation for release details and track details
[SRCH-1333] MF/MO added package tests and implementation for release/tracks
MF/MO fixed test for ReleaseByDateTests
Merge pull request #207 from minkaotic/master

Updated catalogue endpoints to parse new download elements
Minor wording updates upon re-reading it.
Merge pull request #205 from AnthonySteele/UpdateDocs

Update the readme.md as it was very out of date!