Redis documentation Fix (#6378)

Fixed few typos and missing `format` field in the example config provided.

Fixes #6356

docs/bucket/notifications/README.md

@@ -407,7 +407,7 @@ Install [Redis](http://redis.io/download) server. For illustrative purposes, we
 
 This notification target supports two formats: _namespace_ and _access_.
 
-When the _namespace_ format is used, Minio synchronizes objects in the bucket with entries in a hash. For each entry, the key is formatted as "bucketName/objectName" for an object that exists in the bucket, and the value is the JSON-encoded event data about the operation that created/replaced the object in Minio. When objects are updated or deleted, the corresponding entry int he hash is updated or deleted respectively.
+When the _namespace_ format is used, Minio synchronizes objects in the bucket with entries in a hash. For each entry, the key is formatted as "bucketName/objectName" for an object that exists in the bucket, and the value is the JSON-encoded event data about the operation that created/replaced the object in Minio. When objects are updated or deleted, the corresponding entry in the hash is also updated or deleted.
 
 When the _access_ format is used, Minio appends events to a list using [RPUSH](https://redis.io/commands/rpush). Each item in the list is a JSON encoded list with two items, where the first item is a timestamp string, and second item is a JSON object containing evnet data about the operation that happened in the bucket. No entries appended to the list are updated or deleted by Minio in this format.
 
@@ -431,6 +431,7 @@ An example of Redis configuration is as follows:
 "redis": {
     "1": {
         "enable": true,
+        "format": "namespace",
         "address": "127.0.0.1:6379",
         "password": "yoursecret",
         "key": "bucketevents"