Makefile: Add a rule to generate index.html

One less thing I'll have to remember ;).

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..434abfe
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,4 @@
+.PHONY: index.html  # regenerate every time
+
+index.html:
+       nmbug-status --config status-config.json >"$@"