docs: readme update and plugins

README.md

@@ -5,7 +5,7 @@
 
 [![Build Status](https://img.shields.io/circleci/build/github/falcosecurity/falco/master?style=for-the-badge)](https://circleci.com/gh/falcosecurity/falco) [![CII Best Practices Summary](https://img.shields.io/cii/summary/2317?label=CCI%20Best%20Practices&style=for-the-badge)](https://bestpractices.coreinfrastructure.org/projects/2317) [![GitHub](https://img.shields.io/github/license/falcosecurity/falco?style=for-the-badge)](COPYING)
 
-Want to talk? Join us on the [#falco](https://kubernetes.slack.com/archives/CMWH3EH32) channel in the [Kubernetes Slack](https://slack.k8s.io).
+Want to talk? Join us on the [#falco](https://kubernetes.slack.com/messages/falco) channel in the [Kubernetes Slack](https://slack.k8s.io).
 
 ### Latest releases
 
@@ -58,10 +58,25 @@ Notes:
 ---
 
 The Falco Project, originally created by [Sysdig](https://sysdig.com), is an incubating [CNCF](https://cncf.io) open source cloud native runtime security tool.
-Falco makes it easy to consume kernel events, and enrich those events with information from Kubernetes and the rest of the cloud native stack.
+Falco makes it easy to consume kernel events, and enrich those events with information from Kubernetes and the rest of the cloud native stack. 
+Falco can also be extended to other data sources by using plugins.
 Falco has a rich set of security rules specifically built for Kubernetes, Linux, and cloud-native.
 If a rule is violated in a system, Falco will send an alert notifying the user of the violation and its severity.
 
+### What can Falco detect?
+
+Falco can detect and alert on any behavior that involves making Linux system calls.
+Falco alerts can be triggered by the use of specific system calls, their arguments, and by properties of the calling process.
+For example, Falco can easily detect incidents including but not limited to:
+
+- A shell is running inside a container or pod in Kubernetes.
+- A container is running in privileged mode, or is mounting a sensitive path, such as `/proc`, from the host.
+- A server process is spawning a child process of an unexpected type.
+- Unexpected read of a sensitive file, such as `/etc/shadow`.
+- A non-device file is written to `/dev`.
+- A standard system binary, such as `ls`, is making an outbound network connection.
+- A privileged pod is started in a Kubernetes cluster.
+
 ### Installing Falco
 
 If you would like to run Falco in **production** please adhere to the [official installation guide](https://falco.org/docs/getting-started/installation/).
@@ -90,20 +105,22 @@ The Falco Project supports various SDKs for this endpoint.
 | Rust     | [client-rs](https://github.com/falcosecurity/client-rs) |
 | Python   | [client-py](https://github.com/falcosecurity/client-py) |
 
+### Plugins
 
-### What can Falco detect?
+Falco comes with a [plugin framework](https://falco.org/docs/plugins/) that extends it to potentially any cloud detection scenario. Plugins are shared libraries that conform to a documented API and allow for:
 
-Falco can detect and alert on any behavior that involves making Linux system calls.
-Falco alerts can be triggered by the use of specific system calls, their arguments, and by properties of the calling process.
-For example, Falco can easily detect incidents including but not limited to:
+- Adding new event sources that can be used in rules;
+- Adding the ability to define new fields and extract information from events.
+
+The Falco Project maintains [various plugins](https://github.com/falcosecurity/plugins) and provides SDKs for plugin development.
+
+
+##### SDKs
+
+| Language | Repository                                                                    |
+|----------|-------------------------------------------------------------------------------|
+| Go       | [falcosecurity/plugin-sdk-go](https://github.com/falcosecurity/plugin-sdk-go) |
 
-- A shell is running inside a container or pod in Kubernetes.
-- A container is running in privileged mode, or is mounting a sensitive path, such as `/proc`, from the host.
-- A server process is spawning a child process of an unexpected type.
-- Unexpected read of a sensitive file, such as `/etc/shadow`.
-- A non-device file is written to `/dev`.
-- A standard system binary, such as `ls`, is making an outbound network connection.
-- A privileged pod is started in a Kubernetes cluster.
 
 ### Documentation
 
@@ -115,7 +132,7 @@ To get involved with The Falco Project please visit [the community repository](h
 
 How to reach out?
 
- - Join the #falco channel on the [Kubernetes Slack](https://slack.k8s.io)
+ - Join the [#falco](https://kubernetes.slack.com/messages/falco) channel on the [Kubernetes Slack](https://slack.k8s.io)
  - [Join the Falco mailing list](https://lists.cncf.io/g/cncf-falco-dev)
  - [Read the Falco documentation](https://falco.org/docs/)
 

brand/README.md

@@ -143,6 +143,10 @@ Sometimes this word is incorrectly used to refer to a `probe`.
 
 The global term for the software that sends events from the kernel. Such as the eBPF `probe` or the `kernel module`.
 
+#### Plugin
+
+Used to describe a dynamic shared library (`.so` files in Unix, `.dll` files in Windows) that conforms to a documented API and allows to extend Falco's capabilities.
+
 #### Falco
 
 The name of the project, and also the name of [the main engine](https://github.com/falcosecurity/falco) that the rest of the project is built on.