Update changelog

Author: danielnelson

CHANGELOG.md

@@ -9,6 +9,10 @@
 - [azure_storage_queue](/plugins/inputs/azure_storage_queue/README.md) - Contributed by @mjiderhamn
 - [suricata](/plugins/inputs/suricata/README.md) - Contributed by @satta
 
+#### New Processors
+
+- [clone](/plugins/processors/clone/README.md) - Contributed by @adrianlzt
+
 #### New Aggregators
 
 - [merge](/plugins/aggregators/merge/README.md) - Contributed by @influxdata

README.md

@@ -335,6 +335,7 @@ For documentation on the latest development code see the [documentation index][d
 
 ## Processor Plugins
 
+* [clone](./plugins/processors/clone)
 * [converter](./plugins/processors/converter)
 * [date](./plugins/processors/date)
 * [enum](./plugins/processors/enum)