moved source TODO to issue #554

www/docs/externals.md

@@ -110,4 +110,3 @@ If more control is required or your external system does not fit this form, then
 
 For example, your service can keep track of open resources and combine requests to the external service if it supports batched requests, reducing request load and potentially allowing more optimized execution in the non-reactive system.
 Similarly, an external relational database may support some limited form of reactivity/listening, such as PostgreSQL's `pg_notify`; in that case, a custom Skip `ExteralService` can interpret those updates into a form suitable for use within the Skip framework.
-TODO: work out some examples here?