output: elasticsearch: fix default type and index

Signed-off-by: Eduardo Silva <[email protected]>

Author: edsiper

pipeline/outputs/elasticsearch.md

@@ -17,8 +17,8 @@ The **es** output plugin, allows to ingest your records into a [Elasticsearch](h
 | AWS\_External\_ID | External ID for the AWS IAM Role specified with `aws_role_arn` |  |
 | HTTP\_User | Optional username credential for Elastic X-Pack access |  |
 | HTTP\_Passwd | Password for user defined in HTTP\_User |  |
-| Index | Index name | fluentbit |
-| Type | Type name | flb\_type |
+| Index | Index name | fluent-bit |
+| Type | Type name | \_doc |
 | Logstash\_Format | Enable Logstash format compatibility. This option takes a boolean value: True/False, On/Off | Off |
 | Logstash\_Prefix | When Logstash\_Format is enabled, the Index name is composed using a prefix and the date, e.g: If Logstash\_Prefix is equals to 'mydata' your index will become 'mydata-YYYY.MM.DD'. The last string appended belongs to the date when the data is being generated. | logstash |
 | Logstash\_DateFormat | Time format \(based on [strftime](http://man7.org/linux/man-pages/man3/strftime.3.html)\) to generate the second part of the Index name. | %Y.%m.%d |