Improved doc

Author: kozlovb

sqlserver/assets/configuration/spec.yaml

@@ -715,7 +715,8 @@ files:
         display_default: false
     - name: schemas_collection 
       description: |
-        Configure collection of schemas.
+        Configure collection of schemas. "\If database_autodiscovery is not enabled, data is collected 
+        only for the database configured with database."\
       options:
         - name: enabled
           description: |

sqlserver/datadog_checks/sqlserver/sqlserver.py

@@ -116,6 +116,7 @@ def __init__(self, name, init_config, instances):
         self.instance_metrics = []
         self.instance_per_type_metrics = defaultdict(set)
         self.do_check = True
+
         self._config = SQLServerConfig(self.init_config, self.instance, self.log)
         self.tags = self._config.tags