Improve the documentation wrt. installation

Thanks to @real for finding this.

1 files changed, 3 insertions, 1 deletions

diff --git a/doc/source/config.rst b/doc/source/config.rst
index 760ae1b..84fc193 100644
--- a/doc/source/config.rst
+++ b/doc/source/config.rst
@@ -2,7 +2,9 @@ Configuration
 =============
 
 Since PHP *ini-like* configuration model isn't flexible enough,
-Snuffleupagus is using its own format.
+Snuffleupagus is using its own format, in the file specified by
+the directive ``sp.configuration_file`` (in your ``php.ini`` file),
+like ``sp.configuration_file=/etc/php/conf.d/snuffleupagus.ini``.
 
 Options are chainable by using dots (``.``), and string parameters
 **must** be quoted, while booleans and integers aren't.