add `__main__` file

allows to run as `python -m xkcdpass`

diff --git a/xkcdpass/__main__.py b/xkcdpass/__main__.py
new file mode 100644 (file)
index 0000000..b9ab260
--- /dev/null
+++ b/xkcdpass/__main__.py
@@ -0,0 +1,4 @@
+from sys import argv
+from .xkcd_password import main
+
+exit(main(argv))