patch 8.2.0319: file missing in distribution, comments outdated

Problem:    File missing in distribution, comments outdated.
Solution:   Correct path of README file.  Update comments.
diff --git a/Filelist b/Filelist
index 41eb53f..f5328a5 100644
--- a/Filelist
+++ b/Filelist
@@ -14,7 +14,6 @@
 		ci/if_ver*.vim \
 		src/Make_all.mak \
 		src/README.md \
-		src/README_VIM9.md \
 		src/alloc.h \
 		src/arabic.c \
 		src/arglist.c \
@@ -661,6 +660,7 @@
 RT_ALL =	\
 		README.txt \
 		README.md \
+		README_VIM9.md \
 		LICENSE \
 		CONTRIBUTING.md \
 		runtime/bugreport.vim \