Docs build error for peewee-2.3.2
Getting this while running Sphinx v1.2.1 to build the docs

```
peewee-2.3.2/docs/peewee/playhouse.rst:2346: ERROR: Malformed table.
Text in column margin in table line 6.

================   =============  =======================================
Option             Default        Description
================   =============  =======================================
``-l,--logging``   False          Log all queries to stdout.
``-e,--engine``    sqlite         Database driver to use.
``-d,--database``  ``:memory:``   Database to connect to.
================   =============  =======================================
```
