Improved documentation for `NodeSeq.\` and `Nod...
Improved documentation for `NodeSeq.\` and `Nod...

Improved documentation for `NodeSeq.\` and `NodeSeq.\\` (#3328). No
review.


jvican/scala,scala/scala,jvican/scala,lrytz/scala,felixmulder/scala,martijnhoekstra/scala,felixmulder/scala,jvican/scala,scala/scala,shimib/scala,slothspot/scala,slothspot/scala,slothspot/scala,martijnhoekstra/scala,jvican/scala,slothspot/scala,felixmulder/scala,lrytz/scala,lrytz/scala,scala/scala,slothspot/scala,shimib/scala,felixmulder/scala,scala/scala,shimib/scala,martijnhoekstra/scala,martijnhoekstra/scala,felixmulder/scala,martijnhoekstra/scala,slothspot/scala,jvican/scala,jvican/scala,lrytz/scala,scala/scala,felixmulder/scala,slothspot/scala,shimib/scala,lrytz/scala,scala/scala,lrytz/scala,shimib/scala,jvican/scala,martijnhoekstra/scala,shimib/scala,felixmulder/scala