docs: update configuration.md

docs/api/interfaces/IRedisSMQConfig.md

@@ -21,7 +21,7 @@
 
 ### logger
 
-> **logger**?: `ILoggerConfig`
+> **logger**?: [`ILoggerConfig`](https://github.com/weyoss/redis-smq-common/blob/master/docs/api/interfaces/ILoggerConfig.md)
 
 ***
 
@@ -39,5 +39,5 @@
 
 ### redis
 
-> **redis**?: `IRedisConfig`
+> **redis**?: [`IRedisConfig`](https://github.com/weyoss/redis-smq-common/blob/master/docs/api/README.md#iredisconfig)
 

docs/configuration.md

@@ -1,22 +1,45 @@
->[RedisSMQ](../README.md) / [Docs](README.md) / Configuration
-
+> [RedisSMQ](../README.md) / [Docs](README.md) / Configuration
 
 # Configuration
 
-You can configure many of RedisSMQ features using a config object that you can pass in to a configurable component (for example a Consumer constructor).
+RedisSMQ configuration is a one-time setup that takes place, usually, during your application initialization and before
+using any exported class or function from the library.
+
+To register a configuration object RedisSMQ provides a singleton class that may be used as shown bellow:
+
+```javascript
+'use strict';
+const { Configuration, ERedisConfigClient } = require('redis-smq');
+
+const config = {
+  redis: {
+    client: ERedisConfigClient.IOREDIS,
+    options: {
+      host: '127.0.0.1',
+      port: 6379,
+    },
+  },
+}
+
+Configuration.getSetConfig(config);
+```
+
+See [Configuration Class Reference](api/classes/Configuration.md) for more details.
 
 ## Configuration parameters
 
+See [IRedisSMQConfig Interface](api/interfaces/IRedisSMQConfig.md) for more details.
+
 **Configuration Example**
 
 ```javascript
 'use strict';
-const path = require('path');
+const { ERedisConfigClient } = require('redis-smq');
 
 module.exports = {
     namespace: 'my_project_name',
     redis: {
-        client: 'redis',
+        client: ERedisConfigClient.IOREDIS,
         options: {
             host: '127.0.0.1',
             port: 6379,
@@ -39,14 +62,20 @@ module.exports = {
     messages: {
       store: false,
     },
-
 };
 ```
 
-**Parameters**
+#### Message Storage
+
+Published messages, to a queue, are permanently stored unless deleted explicitly. 
+
+The `message.store` option allows, additionally, to configure acknowledged/dead-lettered messages storage for all message queues.
+
+In other words, when `message.store` is enabled, a queue, in addition to all published messages, may hold a list of all 
+dead-lettered messages for example.
+
+By default acknowledged and dead-lettered messages are not stored.
 
-See [IRedisSMQConfig Interface](api/interfaces/IRedisSMQConfig.md) for more details.
-
 **messages.store Usage Examples**
 
 - Only storing dead-lettered messages:
@@ -93,4 +122,4 @@ const config = {
     }
   }
 }
-```
+```