Repair more now-obsolete references to config.h.
diff --git a/PC/readme.txt b/PC/readme.txt
index 0455f27..0826699 100644
--- a/PC/readme.txt
+++ b/PC/readme.txt
@@ -50,7 +50,7 @@
(or makefile) provided. This will enable you to change any source
files or build settings so you can make custom builds.
-config.h An important configuration file specific to PC's.
+pyconfig.h An important configuration file specific to PC's.
config.c The list of C modules to include in the Python PC
version. Manually edit this file to add or