Merge pull request graphql#1130 from jasonsychau/source

Add library graphql-w-persistent

Author: brianwarner

src/content/code/language-support/haskell/server/graphql-w-persistent.md

@@ -0,0 +1,8 @@
+---
+name: graphql-w-persistent 
+description: Complete set of library tools to abstract relational database schemas with SQL, query with GraphQL, and return GraphQL results
+url: https://hackage.haskell.org/package/graphql-w-persistent
+github: jasonsychau/graphql-w-persistent
+---
+
+One time setup: build schema, deploy as microservice or within server, query SQL database with GraphQL!