introduce setup files.
A sample setup file is [[ikiwiki.setup]]. Download it (or copy it from
- `doc/ikiwiki.setup` in the ikiwiki sources), and edit it.
+ `doc/ikiwiki.setup` in the ikiwiki sources), and edit it. Note that this
+ file should *not* be put in your wiki's directory with the rest of the
+ files. A good place to put it is in a ~/.ikiwiki/ subdirectory.
Most of the options, like `wikiname` in the setup file are the same as
ikiwiki's command line options (documented in [[usage]]. `srcdir` and