Readme - add note for twitter notification (#339)

README.md

@@ -975,6 +975,10 @@ When we discover an interesting write-up on Polly, we'll add it to this list. If
 
 * [Dylan Reisenberger](https://twitter.com/softwarereisen) sits down virtually with [Bryan Hogan](https://twitter.com/bryanjhogan) of [NoDogmaBlog](http://nodogmablog.bryanhogan.net/) for an [Introduction to Polly podcast](http://nodogmapodcast.bryanhogan.net/71-dylan-reisenberger-the-polly-project/).  Why do I need Polly?  History of the Polly project.  What do we mean by resilience and transient faults?  How retry and circuit-breaker help.  Exponential backoff.  Stability patterns.  Bulkhead isolation.  Future directions (as at April 2017).
 
+## Twitter
+
+* Follow [Dylan Reisenberger on twitter](https://twitter.com/softwarereisen) for notification of new Polly releases, advance notice of new proposals, occasional tweets of interesting resilience articles (no junk).
+
 ## Videos
 
 * From MVP [Houssem Dellai](https://github.com/HoussemDellai), a [youtube video on How to use Polly with Xamarin Apps](https://www.youtube.com/watch?v=7vsN0RkFN_E), covering wait-and-retry and discussing circuit-breaker policy with a demonstration in Xamarin Forms.  Here is the [source code](https://github.com/HoussemDellai/ResilientHttpClient) of the application demonstrated in the video.  Draws on the [`ResilientHttpClient`](https://github.com/dotnet-architecture/eShopOnContainers/blob/dev/src/BuildingBlocks/Resilience/Resilience.Http/ResilientHttpClient.cs) from Microsoft's [eShopOnContainers project](https://github.com/dotnet-architecture/eShopOnContainers).