Adjust document format, pypi seems don't like 'code:: sh'

README.rst

 Install with pip
 ~~~~~~~~~~~~~~~~
 
-Cdiff is already listed on `PyPI <http://pypi.python.org/pypi/cdiff>`_, you can
-install with ``pip`` if you have the tool.
+Cdiff is already listed on `PyPI`_, you can install with ``pip`` if you have
+the tool.
 
-.. code:: sh
+.. _PyPI: http://pypi.python.org/pypi/cdiff
+
+.. code-block:: bash
 
     pip install --upgrade cdiff
 
 
 You can also run the setup.py from the source if you don't have ``pip``.
 
-.. code:: sh
+.. code-block:: bash
 
     git clone https://github.com/ymattw/cdiff.git
     cd cdiff
 Download directly
 ~~~~~~~~~~~~~~~~~
 
-Just save `cdiff.py <https://raw.github.com/ymattw/cdiff/master/cdiff.py>`_ to
-whatever directory which is in your ``$PATH``, for example, ``$HOME/bin`` is in
-my ``$PATH``, so I save the script there and name as ``cdiff``.
+Just save `cdiff.py`_ to whatever directory which is in your ``$PATH``, for
+example, ``$HOME/bin`` is in my ``$PATH``, so I save the script there and name
+as ``cdiff``.
+
+.. _`cdiff.py`: https://raw.github.com/ymattw/cdiff/master/cdiff.py
 
-.. code:: sh
+.. code-block:: bash
 
-    curl -sSL https://raw.github.com/ymattw/cdiff/master/cdiff.py > ~/bin/cdiff
+    curl -ksSL https://raw.github.com/ymattw/cdiff/master/cdiff.py > ~/bin/cdiff
     chmod +x ~/bin/cdiff
 
 Usage
 Read diff from local modification in a *Git/Mercurial/Svn* workspace (output
 from e.g. ``git diff``, ``svn diff``):
 
-.. code:: sh
+.. code-block:: bash
 
     cd proj-workspace
     cdiff                       # view colored incremental diff
 Read log with changes in a *Git/Mercurial/Svn* workspace (output from e.g.
 ``git log -p``, ``svn log --diff``), note *--diff* option is new in svn 1.7.0:
 
-.. code:: sh
+.. code-block:: bash
 
     cd proj-workspace
     cdiff -l                    # read log along with changes
 
 Pipe in a diff:
 
-.. code:: sh
+.. code-block:: bash
 
     git log -p -2 | cdiff       # view git log with changes of last 2 commits
     git show 15bfa | cdiff -s   # view a given git commit, side by side
 
 Redirect output to another patch file is safe:
 
-.. code:: sh
+.. code-block:: bash
 
     svn diff -r PREV | cdiff -s > my.patch
 
 
 Pull requests are very welcome, please make sure your changes can pass unit
 tests and regression tests by run ``make test`` (required tool *coverage* can
-be installed with ``pip install coverage``).  Also watch out `travis build
-<https://travis-ci.org/ymattw/cdiff/pull_requests>`_ after push, make sure it
-passes as well.
+be installed with ``pip install coverage``).  Also watch out `travis build`_
+after push, make sure it passes as well.
+
+.. _`travis build`: https://travis-ci.org/ymattw/cdiff/pull_requests
 
 See also
 --------
 
-I have another tool `coderev <https://github.com/ymattw/coderev>`_ which
-generates side-by-side diff pages for code review from two given files or
-directories, I found it's not easy to extend to support git so invented
-`cdiff`.  Idea of ansi color markup is also from project `colordiff
-<https://github.com/daveewart/colordiff>`_.
+I have another tool `coderev`_ which generates side-by-side diff pages for code
+review from two given files or directories, I found it's not easy to extend to
+support git so invented `cdiff`.  Idea of ansi color markup is also from
+project `colordiff`_.
+
+.. _coderev: https://github.com/ymattw/coderev
+.. _colordiff: https://github.com/daveewart/colordiff
 
+.. vim:set ft=rst et sw=4 sts=4 tw=79: