Add an example paper for scribble/lncs docs

Please merge to v6.0

original commit: ae641cdfc53954b64f80b7b77af07d5f94d50ba8

pkgs/scribble-pkgs/scribble-doc/scribblings/scribble/lncs.scrbl

@@ -55,3 +55,38 @@ The @racket[pre-content-expr]s are used as the institutions of the authors.
 @defform[(email pre-content-expr ...)]{
   Specifies an email address; must be used inside @racket[institute].
 }
+
+@section{Example}
+
+Here is an example of a paper written in the LNCS format:
+
+@margin-note{For more randomly generated papers, see SCIgen:
+             @url["http://pdos.csail.mit.edu/scigen"]}
+
+@codeblock[#:keep-lang-line? #t]|{
+  #lang scribble/lncs
+
+  @authors[@author[#:inst "1"]{Lauritz Darragh}
+           @author[#:inst "2"]{Nikolaj Kyran}
+           @author[#:inst "2"]{Kirsten Gormlaith}
+           @author[#:inst "2"]{Tamaz Adrian}]
+
+  @institutes[@institute["University of Southeast Boston"
+                         @linebreak[]
+                         @email|{darragh@cs.seboston.edu}|]
+              @institute["University of Albion"
+                         @linebreak[]
+                         @email|{{nkyran,gorm,tamaz}@cs.albion.ac.uk}|]]
+
+  @title{Arak: Low-Energy, Interposable Theory }
+
+  @abstract{The implications of client-server symmetries have been
+  far-reaching and pervasive. Given the current status of
+  constant-time theory, mathematicians daringly desire the synthesis
+  of rasterization, which embodies the essential principles of
+  algorithms. In this work, we describe a client-server tool for
+  investigating flip-flop gates (Arak), verifying that the
+  producer-consumer problem can be made homogeneous, secure, and
+  wireless.}
+}|
+