Update readme.md

readme.md

@@ -338,8 +338,9 @@ The plang is then known to the test server and can be used (if you use e.g. synd
 
 
 ## config.json file
-This file is ued to configure the server.  
+This file is used to configure the server.  
 This file is required!
+You will find the file in the directory `/syndromtests/TestServer/`
 
 First the `config.json` file is read. If `useConfigFromDb` is set to true then the config from db is read and the settings are overwritten