docs: typo (#413)

docs/advanced/configuration.md

@@ -98,6 +98,6 @@ Most of the configuration can be defined in 3 ways:
 - environment variables (override config file)
 - command line options (override environment variables)
 
-Here is a non exhaustive [liste of variable](./advanced/configuration-vars.md#configuration-variables) with some informations on usage and behavior.
+Here is a non exhaustive [list of variables](./advanced/configuration-vars.md#configuration-variables) with some informations on usage and behavior.
 
 For exhaustive description of behavior you can [check the source code](https://github.com/socialgouv/kontinuous/blob/master/packages/common/config/load-config.js). <br>