docs(README.md): update plugin registry table

Signed-off-by: poiana <[email protected]>

README.md

@@ -66,7 +66,7 @@ These comments and the text between them should not be edited by hand -->
 | [cloudtrail](https://github.com/falcosecurity/plugins/tree/master/plugins/cloudtrail) | **Event Sourcing** <br/>ID: 2 <br/>`aws_cloudtrail` <br/>**Field Extraction** <br/> `aws_cloudtrail` | Reads Cloudtrail JSON logs from files/S3 and injects as events  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | [json](https://github.com/falcosecurity/plugins/tree/master/plugins/json) | **Field Extraction** <br/> *All Sources* | Extract values from any JSON payload  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | [dummy](https://github.com/falcosecurity/plugins/tree/master/plugins/dummy) | **Event Sourcing** <br/>ID: 3 <br/>`dummy` <br/>**Field Extraction** <br/> `dummy` | Reference plugin used to document interface  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
-| [dummy_c](https://github.com/falcosecurity/plugins/tree/master/plugins/dummy_c) | **Event Sourcing** <br/>ID: 4 <br/>`dummy_c` <br/>**Field Extraction** <br/> `dummy_c` | Like Dummy, but written in C++  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
+| [dummy_c](https://github.com/falcosecurity/plugins/tree/master/plugins/dummy_c) | **Event Sourcing** <br/>ID: 4 <br/>`dummy_c` <br/>**Field Extraction** <br/> `dummy_c` | Like dummy, but written in C++  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | [docker](https://github.com/Issif/docker-plugin) | **Event Sourcing** <br/>ID: 5 <br/>`docker` <br/>**Field Extraction** <br/> `docker` | Docker Events  <br/><br/> Authors: [Thomas Labarussias](https://github.com/Issif) <br/> License: Apache-2.0 |
 | [seccompagent](https://github.com/kinvolk/seccompagent) | **Event Sourcing** <br/>ID: 6 <br/>`seccompagent` <br/>**Field Extraction** <br/> `seccompagent` | Seccomp Agent Events  <br/><br/> Authors: [Alban Crequy](https://github.com/kinvolk/seccompagent) <br/> License: Apache-2.0 |
 | [okta](https://github.com/falcosecurity/plugins/tree/master/plugins/okta) | **Event Sourcing** <br/>ID: 7 <br/>`okta` <br/>**Field Extraction** <br/> `okta` | Okta Log Events  <br/><br/> Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |