Update runtime files.
diff --git a/src/po/README.txt b/src/po/README.txt
index 60a7e0a..d283210 100644
--- a/src/po/README.txt
+++ b/src/po/README.txt
@@ -49,8 +49,14 @@
 language.
 
 - Edit Makefile to add xx to LANGUAGES and xx.mo to MOFILES.
-- Copy the header of an existing file, e.g., de.po, to xx.po.  Do not copy any
-  of the translated messages, delete everything after the "msgstr".
+- If you haven't done so already, run ./configure in the top vim directory
+  (i.e. go up two directories) and then come back here afterwards.
+- Execute these commands:
+  % make vim.pot
+  % msginit -l xx
+  % rm vim.pot
+  The first command will generate a vim.pot file which is used by msginit to
+  generate a correct xx.po file.  After that vim.pot is not needed.
 - The remaining work is like updating, see the next section.