change filepaths in docs

docs/index.rst

@@ -24,13 +24,13 @@ Overview
 --------
 
 Twine is a command-line tool for interacting with PyPI securely over HTTPS. Its
-command line arguments are parsed in ``twine/twine/cli.py``. Currently, twine
+command line arguments are parsed in ``twine/cli.py``. Currently, twine
 has two principal functions: uploading new packages and registering new
-`projects`_ . The code for registering new projects is in
-``twine/twine/commands/register.py``, and the code for uploading is in
-``twine/twine/commands/upload.py``. The file ``twine/twine/package.py``
+`projects`_. The code for registering new projects is in
+``twine/commands/register.py``, and the code for uploading is in
+``twine/commands/upload.py``. The file ``twine/package.py``
 contains a single class, ``PackageFile``, which hashes the project files and
-extracts their metadata. The file ``twine/twine/repository.py`` contains the
+extracts their metadata. The file ``twine/repository.py`` contains the
 ``Repository`` class, whose methods control the URL the package is uploaded to
 (which the user can specify either as a default, in the ``.pypirc`` file, or
 pass on the command line), and the methods that upload the package securely to