Fix sample sqlite database path in doctrine config

Author: chalasr

reference/configuration/doctrine.rst

@@ -203,7 +203,7 @@ Full Default Configuration
                         password="secret"
                         driver="pdo_mysql"
                         driver-class="MyNamespace\MyDriverImpl"
-                        path="%kernel.data_dir%/data.sqlite"
+                        path="%kernel.root_dir%/../var/data/data.sqlite"
                         memory="true"
                         unix-socket="/tmp/mysql.sock"
                         wrapper-class="MyDoctrineDbalConnectionWrapper"
@@ -431,7 +431,7 @@ The following block shows all possible configuration keys:
                     password="secret"
                     driver="pdo_mysql"
                     driver-class="MyNamespace\MyDriverImpl"
-                    path="%kernel.data_dir%/data.sqlite"
+                    path="%kernel.root_dir%/../var/data/data.sqlite"
                     memory="true"
                     unix-socket="/tmp/mysql.sock"
                     wrapper-class="MyDoctrineDbalConnectionWrapper"