[pdd19]

add a note about search order of the include directive.


git-svn-id: https://svn.parrot.org/parrot/trunk@25899 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

docs/pdds/draft/pdd19_pir.pod

@@ -778,6 +778,12 @@ name of the PIR file that is included. The contents of the included
 file are inserted as if they were written at the point where the
 C<.include> directive occurs.
 
+The include file is searched for in the current directory and in
+runtime/parrot/include, in that order. The first file of that name to
+be found is included.
+
+{{ Check the search order of the include directive and whether it's complete }}
+
 =item * C<.macro> <identifier> [<parameters>]
 
 The C<.macro> directive starts the definition of a macro named by the specified