Add documentation for PEP 338
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index ff9c391..b588048 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -394,6 +394,7 @@
 \input{libzipimport}
 \input{libpkgutil}
 \input{libmodulefinder}
+\input{librunpy}
 
 
 % =============