Update general config documentation

Author: samson0v

_includes/templates/iot-gateway/sqlite-storage-config.md

@@ -0,0 +1,21 @@
+|---
+| **Parameter**               | **Default value**                            | **Description**                                                |
+|:-|:-|-
+| type                        | **sqlite**                                   | Storage type (Saving data to .db file)                         |
+| data_file_path              | **./data/data.db**                           | Path to folder, that will contains data (Relative or Absolute).|
+| messages_ttl_check_in_hours | **1**                                        | How often will Gateway check data for obsolescence             |
+| messages_ttl_in_days *      | **7**                                        | Maximum days that storage will save data                       |
+|---
+
+
+\* -- If receive data when storage has already counted, described in this parameter, new data will lose.
+
+Storage section of configuration file will look like:
+
+```yaml
+storage
+  type: sqlite
+  data_file_path: ./data/data.db
+  messages_ttl_check_in_hours: 1
+  messages_ttl_in_days: 7
+```

docs/iot-gateway/configuration.md

@@ -62,6 +62,7 @@ If you like to use only one of them - just remove all other connectors.
 thingsboard:
   host: thingsboard.cloud
   port: 1883
+  minPackSendDelayMS: 0
   security:
     accessToken: PUT_YOUR_ACCESS_TOKEN_HERE
 storage:
@@ -143,10 +144,12 @@ Configs in storage subsection provides configuration for saving incoming data be
 There are 2 variants for this section: memory or file.
 1. **Memory** storage - Received data saving to the RAM memory.
 2. **File** storage - Received data saving to the hard drive.
+3. **SQLite** storage - Received data saving to the .db file.
 
 {% capture storagetogglespec %}
 Memory storage<br/> <small>(recommended if there is not enough disk space)</small>%,%memory%,%templates/iot-gateway/storage-memory-config.md%br%
-File storage<br/> <small>(recommended for more persistent)</small>%,%file%,%templates/iot-gateway/storage-file-config.md{% endcapture %}
+File storage<br/> <small>(recommended for more persistent)</small>%,%file%,%templates/iot-gateway/storage-file-config.md%br%
+SQLite storage<br/> <small>(recommended for more speed)</small>%,%sqlite%,%templates/iot-gateway/sqlite-storage-config.md{% endcapture %}
 
 {% include content-toggle.html content-toggle-id="storageConfig" toggle-spec=storagetogglespec %}