Merge #17097: build: Add README.md to DIST target

fa91590 build: Add README.md to DIST target (MarcoFalke)

Pull request description:

  This is required because our release tarball is generated by listing each needed file. See: #16734

  Should fix the failing builds after commit 9b4dfec

ACKs for top commit:
  fanquake:
    ACK fa91590 - just checked that `README.md` is present inside the tarball after running `make dist`.

Tree-SHA512: 92e6145cbea4f7d0edfc88e4dcc11a34349bbf2f1948340531d2ff8832cfef94f979add8bd925b7e2c82a6bed4be40b8d41e94807d4a69983dcda3bccb206a31

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 \