build: Add README.md to DIST target

Author: MarcoFalke

Makefile.am

@@ -43,7 +43,10 @@ OSX_INSTALLER_ICONS=$(top_srcdir)/src/qt/res/icons/bitcoin.icns
 OSX_PLIST=$(top_builddir)/share/qt/Info.plist #not installed
 OSX_QT_TRANSLATIONS = da,de,es,hu,ru,uk,zh_CN,zh_TW
 
-DIST_DOCS = $(wildcard doc/*.md) $(wildcard doc/release-notes/*.md)
+DIST_DOCS = \
+  README.md \
+  $(wildcard doc/*.md) \
+  $(wildcard doc/release-notes/*.md)
 DIST_CONTRIB = $(top_srcdir)/contrib/bitcoin-cli.bash-completion \
 	       $(top_srcdir)/contrib/bitcoin-tx.bash-completion \
 	       $(top_srcdir)/contrib/bitcoind.bash-completion \