[orca] Get make distcheck working after README change to markdown

[Joanmarie Diggs <joanied src gnome org>]

commit 91553a9d68ce536edf4d5c1c6cacc9b467b25f5f
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Sep 9 16:39:01 2019 +0200

    Get make distcheck working after README change to markdown

 Makefile.am | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/Makefile.am b/Makefile.am
index 2d493dc17..c9048e117 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,6 +10,7 @@ DISTCLEANFILES =                \
        orca-autostart.desktop
 
 README: README.md
+       cp $< $@
 
 gtk_update_icon_cache = gtk-update-icon-cache -f -t $(datadir)/icons/hicolor
 
@@ -35,7 +36,8 @@ EXTRA_DIST =                \
        $(autostart_in_files) \
        $(icon_DATA)        \
        ChangeLog           \
-       MAINTAINERS
+       MAINTAINERS         \
+       README.md
 
 dist-hook:
        @if test -d "$(srcdir)/.git"; \