README.md in fluent-plugin-newrelic-1.1.3 vs README.md in fluent-plugin-newrelic-1.1.4

@@ -21,13 +21,16 @@
 
 ## Configuration
 
 ### Required plugin configuration
 
+Exactly one of the following:
+
 | Property | Description |
 |---|---|
 | api_key | your New Relic API Insert key |
+| license_key | your New Relic License key |
 
 ### Optional plugin configuration
 
 | Property | Description | Default value |
 |---|---|---|
@@ -43,21 +46,35 @@
 renamed to `message`, overwriting any `message` field. Kubernetes logs have their messages
 in a `log` field, while we want messages in a `message` field.
 
 ### Example
 
-Add the following block to your Fluentd config file (with your specific New Relic Insights Insert key), then restart Fluentd.
+Add one of the following blocks to your Fluentd config file (with your specific key), then restart Fluentd.
 
-Example:
+#### Using Insights Inserts Key
+
+Example using Insights Insert key:
 ```rb
 <match **>
   @type newrelic
   api_key <NEW_RELIC_INSIGHTS_INSERT_KEY>
 </match>
 ```
 
 Getting your New Relic Insights Insert key:
 `https://insights.newrelic.com/accounts/<ACCOUNT_ID>/manage/api_keys`
+
+#### Using License Key
+Example using License key:
+```rb
+<match **>
+  @type newrelic
+  license_key <NEW_RELIC_LICENSE_KEY>
+</match>
+```
+
+Getting your New Relic license key:
+`https://rpm.newrelic.com/accounts/<ACCOUNT_ID>`
 
 ## Copyright
 
 * Copyright(c) 2019 - New Relic
 * License