Merge pull request #5 from App-vNext/reisenberger-netstandardverspatch

Update NetStandard target versions in Readme

Author: reisenberger

README.md

@@ -1,10 +1,10 @@
 # Polly.Caching.MemoryCache
 
-This repo contains the MemoryCache plugin for the [Polly](https://github.com/App-vNext/Polly) [Cache policy](https://github.com/App-vNext/Polly/wiki/Cache)
+This repo contains the MemoryCache plugin for the [Polly](https://github.com/App-vNext/Polly) [Cache policy](https://github.com/App-vNext/Polly/wiki/Cache).  It targets .NET 4.0, .NET 4.5 and .NET Standard 1.3.
 
 ## What is Polly?
 
-[Polly](https://github.com/App-vNext/Polly) is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, Cache aside and Fallback in a fluent and thread-safe manner. Polly targets .NET 4.0, .NET 4.5 and .NET Standard 1.0. 
+[Polly](https://github.com/App-vNext/Polly) is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, Cache aside and Fallback in a fluent and thread-safe manner. Polly targets .NET 4.0, .NET 4.5 and .NET Standard 1.1. 
 
 Polly is a member of the [.NET Foundation](https://www.dotnetfoundation.org/about)!
 
@@ -44,6 +44,7 @@ For details of changes by release see the [change log](CHANGELOG.md).
 # Acknowledgements
 
 * [@seanfarrow](https://github.com/seanfarrow) and [@reisenberger](https://github.com/reisenberger) - Initial caching architecture in the main Polly repo
+* [@kesmy](https://github.com/kesmy) - original structuring of the build for msbuild15, in the main Polly repo
 
 
 # Instructions for Contributing