Make README.md canonical.  (Symbolic links confuse github.)
diff --git a/README.md b/README.md
deleted file mode 120000
index 100b938..0000000
--- a/README.md
+++ /dev/null
@@ -1 +0,0 @@
-README
\ No newline at end of file
diff --git a/README b/README.md
similarity index 100%
rename from README
rename to README.md