Add applicable records

Fixes #267 (closed)

doc/hoot.texi

@@ -1860,13 +1860,13 @@ appear more than once in the fields section.
 
 @end deffn
 
-@subsection Applicable structs
+@subsection Applicable records
 
 Hoot's record type system can be used to create new types that can be
 applied as if they were regular procedures.  These are known as
-@emph{applicable records}.  The @code{<applicable-reord>} record type
-defines a single field that should contain a procedure.  Any record
-type that descends from the @code{<applicable-record>} lineage (via
+@emph{applicable records}.  The @code{<applicable-reord>} type defines
+a single field that should contain a procedure.  Any record type that
+descends from the @code{<applicable-record>} lineage (via
 @code{#:parent}) becomes procedure-like.
 
 As a contrived example, an incrementing counter could be implemented