fixup! Use markdown for README, update content

README.md

 <img src="picts/logo.png" width="25%" height="25%"/>
 ... to play scores
-============================
+----------------------------------
+
+
 <img align="left" width="20%" height="20%" src="picts/hicolor/256x256/apps/nootka.png"/>
 [https://nootka.sourceforge.io](https://nootka.sourceforge.io/)
 

packaging/src/make-src.sh

@@ -33,7 +33,7 @@ cp $SRC_DIR/changes $DST_DIR
 cp $SRC_DIR/copyright $DST_DIR
 cp $SRC_DIR/CMakeLists.txt $DST_DIR
 cp $SRC_DIR/gpl $DST_DIR
-cp $SRC_DIR/README $DST_DIR
+cp $SRC_DIR/README.md $DST_DIR
 cp $SRC_DIR/TODO.md $DST_DIR
 cp $SRC_DIR/cmake_uninstall.cmake.in $DST_DIR
 if [ -f $SRC_DIR/.hg/cache/branchheads ]; then