DOCUMENT-112: Clarified path key values

Edits to directory path key values.

README.md

@@ -1365,7 +1365,7 @@ To set up a virtual host with WSGI
 
 The `directories` parameter within the `apache::vhost` class passes an array of hashes to the vhost to create [Directory](http://httpd.apache.org/docs/current/mod/core.html#directory), [File](http://httpd.apache.org/docs/current/mod/core.html#files), and [Location](http://httpd.apache.org/docs/current/mod/core.html#location) directive blocks. These blocks take the form, '< Directory /path/to/directory>...< /Directory>'.
 
-The `path` key sets the path for the directory, files, and location blocks, and it can be a regex for matching providers. Each hash passed to `directories` **must** contain `path` as one of the keys. 
+The `path` key sets the path for the directory, files, and location blocks. Its value must be a path for the 'directory', 'files', and 'location' providers, or a regex for the 'directorymatch', 'filesmatch', or 'locationmatch' providers. Each hash passed to `directories` **must** contain `path` as one of the keys. 
 
 The `provider` key is optional. If missing, this key defaults to 'directory'. Valid values for `provider` are 'directory', 'files', 'location', 'directorymatch', 'filesmatch', or 'locationmatch'. If you set `provider` to 'directorymatch', it uses the keyword 'DirectoryMatch' in the Apache config file.