Add setup.py, use full screenshot URL for pipy.

README.md

@@ -7,10 +7,17 @@
 
 Original author (early 2000s): [@mkuettler](https://github.com/mkuettler).
 
-![Screenshot](screenshot.png)
+![Screenshot](https://github.com/heiner/filesizeview/blob/master/screenshot.png)
 
 Usage:
 
 ```sh
 $ python filesizeview.py path/to/large/dir
 ```
+
+Or:
+
+```sh
+pip install filesizeview
+filesizeview path/to/large/dir
+```

setup.py

@@ -0,0 +1,22 @@
+import setuptools
+
+
+def main():
+    with open("README.md", "r") as fh:
+        long_description = fh.read()
+
+    setuptools.setup(
+        name="filesizeview",
+        version="0.0.2",
+        description="Graphical display of file sizes on terminal",
+        long_description=long_description,
+        long_description_content_type="text/markdown",
+        entry_points={"console_scripts": ["filesizeview = filesizeview.py",]},
+        packages=[],
+        url="https://github.com/heiner/filesizeview",
+        python_requires=">=3.0",
+    )
+
+
+if __name__ == "__main__":
+    main()