Escape quotes " in JSON package documentation. (#2798)
Escape quotes " in JSON package documentation. (#2798)

The """ ... """ cases the following error:

> Error:
> /home/stewart/opt/pony/bleed/packages/json/json.pony:60:22: syntax
> error: expected type, interface, trait, primitive, class, actor, member
> or method after # JSON Package
kulibali/ponyc,cquinn/ponyc,sgebbie/ponyc,sgebbie/ponyc,CausalityLtd/ponyc,Theodus/ponyc,jemc/ponyc,Theodus/ponyc,cquinn/ponyc,sgebbie/ponyc,cquinn/ponyc,jemc/ponyc,ponylang/ponyc,jemc/ponyc,ponylang/ponyc,dipinhora/ponyc,ponylang/ponyc,sgebbie/ponyc,kulibali/ponyc,dipinhora/ponyc,kulibali/ponyc,Theodus/ponyc,CausalityLtd/ponyc,sgebbie/ponyc,dipinhora/ponyc,Theodus/ponyc,cquinn/ponyc,kulibali/ponyc,Theodus/ponyc,CausalityLtd/ponyc