Tidying up FAQ addition

    where `lang` is `bash` for the Unix Shell, `r` for R, `matlab` for MATLAB,

    `python` for Python, and `sql` for SQL. For a full list, check:

    ~~~

    ~~~ {.bash}

    $ pandoc -v

    ~~~

*   `pandoc: command not found`

    Probably you didn't install [Pandoc](http://pandoc.org/installing.html).

    You probably don't have [Pandoc](http://pandoc.org/installing.html) installed.

*   `pandoc: Error running filter tools/filters/blockquote2div.py`

    due `ImportError: No module named 'pandocfilters'`

    due to `ImportError: No module named 'pandocfilters'`

    Probably you didn't install

    You probably haven't installed

    [pandocfilters](https://pypi.python.org/pypi/pandocfilters/1.2.3).

*   `pandoc: Error running filter tools/filters/blockquote2div.py

    tools/filters/blockquote2div.py not found in path`

    Git has likely checked out the files with the incorrect line endings.

    On Unix systems the recommended setting is 

    On Unix systems the recommended setting is:

    ```bash

    ~~~ {.bash}

    git config --global core.autocrlf input

    ```

    and on Windows

    ~~~

    and on Windows:

    ```bash

    ~~~ {.bash}

    git config --global core.autocrlf true

    ```

    ~~~

    Note that after changing this setting you will need to either re-clone

    or re-checkout the files in the repository.