Add missing shebang and import to git hook

Also remove unneeded __main__ check.

1 files changed, 3 insertions, 2 deletions

diff --git a/README.rst b/README.rst
index f120339c..b58a3ac2 100644
--- a/README.rst
+++ b/README.rst
@@ -548,10 +548,11 @@ To cause the commit to fail if there are isort errors (strict mode), include the
 
 .. code-block:: python
 
+    #!/usr/bin/env python
+    import sys
     from isort.hooks import git_hook
 
-    if __name__ == '__main__':
-        sys.exit(git_hook(strict=True))
+    sys.exit(git_hook(strict=True))
 
 If you just want to display warnings, but allow the commit to happen anyway, call ``git_hook`` without
 the `strict` parameter.