Add link to links (graphql-dotnet#1051)

Author: corstian

docs2/site/docs/guides/links.md

@@ -3,3 +3,4 @@
 * [API Development in .NET with GraphQL](https://www.lynda.com/NET-tutorials/API-Development-NET-GraphQL/664823-2.html) by [Glenn Block](https://twitter.com/gblock) - demonstrates how to use the GraphQL .NET framework to build a fully functional GraphQL endpoint.
 * [ASP.NET Core GraphQL Boxed Project Template](https://github.com/Dotnet-Boxed/Templates/blob/master/Docs/GraphQL.md) - A fully featured GraphQL server project template with lots of optional features built on top of ASP.NET Core.
 * [10 part blog series](http://fiyazhasan.me/tag/graphql-dotnet/) by [Fiyaz Hasan](https://twitter.com/FiyazBinHasan)
+* [Implementing pagination with GraphQL.NET and Relay](http://corstianboerman.com/2019-03-08/implementing-pagination-with-graphql-net-and-relay.html) by [Corstian Boerman](https://twitter.com/corstianboerman) - Article describing the details of implementing cursor based pagination (against SQL Server) and exposing this through connections in GraphQL.