Update README.md

fixes Dylan's example link

README.md

@@ -181,6 +181,6 @@ Simmy was [the brainchild of](https://github.com/App-vNext/Polly/issues/499) [@m
 * [Simmy, the monkey for making chaos](http://elvanydev.com/chaos-injection-with-simmy/) -by [Geovanny Alzate Sandoval](https://twitter.com/geovany0114)
 
 ### Samples
-* [Dylan Reisenberger](http://www.thepollyproject.org/author/dylan/) presents an [intentionally simple example]((https://github.com/Polly-Contrib/Polly.Contrib.SimmyDemo_WebApi)) .NET Core WebAPI app demonstrating how we can set up Simmy chaos policies for certain environments and without changing any existing configuration code injecting faults or chaos by modifying external configuration.
+* [Dylan Reisenberger](http://www.thepollyproject.org/author/dylan/) presents an [intentionally simple example](https://github.com/Polly-Contrib/Polly.Contrib.SimmyDemo_WebApi) .NET Core WebAPI app demonstrating how we can set up Simmy chaos policies for certain environments and without changing any existing configuration code injecting faults or chaos by modifying external configuration.
 
 * [Geovanny Alzate Sandoval](https://github.com/vany0114) made a [microservices based sample application](https://github.com/vany0114/chaos-injection-using-simmy) to demonstrate how chaos engineering works with Simmy using chaos policies in a distributed system and how we can inject even a custom behavior given our needs or infrastructure, this time injecting custom behavior to generate chaos in our Service Fabric Cluster.