Put back the chapter Retargeting the Compiler.

The text is there, but the chapter heading was missing.

diff --git a/src/docs/internals/retargeting.tex b/src/docs/internals/retargeting.tex
index 9fa2c81..08399cc 100644 (file)
--- a/src/docs/internals/retargeting.tex
+++ b/src/docs/internals/retargeting.tex
@@ -1,5 +1,6 @@
 \part{Compiler Retargeting}
 
+\chapter{Retargeting the Compiler}
 [\#\#\#
 
 In general, it is a danger sign if a generator references a TN that isn't an