diff --git a/README.md b/README.md
index 1561b671..04e90aab 100644
--- a/README.md
+++ b/README.md
@@ -2,34 +2,26 @@
-This repository contains documentation, software platform source and RPi image builder for COEX Clover.
+This repository contains documentation, software platform source code and RPi image builder for COEX Clover drone kit.
Clover is a [PX4](https://px4.io)- and [ROS](https://www.ros.org)-powered educational programmable drone kit consisting of an unassembled quadcopter, open source software and documentation. The kit includes Pixracer-compatible autopilot, Raspberry Pi 4 as companion computer, a camera for computer vision navigation as well as additional sensors and peripheral devices.
-The main documentation is available at [https://clover.coex.tech](https://clover.coex.tech/).
+The main documentation is available at [https://clover.coex.tech](https://clover.coex.tech/). Official website: coex.tech/clover.
-Official website: coex.tech/clover.
-
-## Autonomous flights compilation
+## Autonomous flights video
[](https://youtu.be/u3omgsYC4Fk)
Clover drone is used on a wide range of educational events, including [Copter Hack](https://www.youtube.com/watch?v=xgXheg3TTs4), WorldSkills Drone Operation competition, [Autonomous Vehicles Track of NTI Olympics 2016–2020](https://www.youtube.com/watch?v=E1_ehvJRKxg), Quadro Hack 2019 (National University of Science and Technology MISiS), Russian Robot Olympiad (autonomous flights), and others.
-## PX4 Dev Summit 2019 talk
-
-[](http://www.youtube.com/watch?v=CTG9E9PbJQ8)
-
## Features
### Prebuilt RPi image
@@ -38,7 +30,18 @@ Clover drone is used on a wide range of educational events, including [Copter Ha
### Common robotics software
-ROS, OpenCV...
+Prebuilt image for Raspberry Pi includes:
+
+|Software|Description|
+|-|-|
+|Raspbian Buster||
+|[ROS Melodic](http://wiki.ros.org/melodic)|Common robotics framework|
+|[OpenCV](https://opencv.org)|Computer vision library|
+|[`mavros`](http://wiki.ros.org/mavros)|ROS package for communication with the flight controller|
+|Configured networking||
+|Periphery drivers for ROS ([GPIO](https://clover.coex.tech/en/gpio.html), [LED strip](https://clover.coex.tech/en/leds.html), etc)||
+|`clover`|package for autonomous drone control|
+|`aruco_pose`|Package for marker-assisted navigation|
### QGroundControl Wi-Fi bridge
@@ -46,7 +49,7 @@ ROS, OpenCV...
### Easy autonomous flights programming
-Taking off, navigating and land is just:
+By using `clover` package, taking off, navigating and landing is just:
```python
navigate(x=0, y=0, z=1, frame_id='body', auto_arm=True) # takeoff and hover 1 m above the ground
@@ -64,13 +67,21 @@ See [programming documentation](https://clover.coex.tech) for further informatio
### Optical flow positioning
+
+
RPi based optical flow....
+See [details](https://clover.coex.tech/en/optical_flow.html) in the documentation.
+
### ArUco markers recognizing
+
+
...
-### Easy work with peripheral devices
+See [details](https://clover.coex.tech/en/aruco.html) in the documentation.
+
+### Easy working with peripheral devices
Preinstalled package for the [LED strip](https://clover.coex.tech/en/leds.html) allows high-level control (such as rainbow effect or color fade) as well as individual LED low-level control:
@@ -104,45 +115,53 @@ level = pi.read(12) # read the state of pin 12
### Simulator
-Gazebo-based simulation.
+
+
+Clover repository includes three simulation-related repository for Gazebo-based simulation.
Screenshot...
+See details in the [documentation](https://clover.coex.tech/en/simulation.html). The simulation environment also available as a virtual machine image.
+
### Remote control apps
-...
+
+
+
### Community
-Community photo...
+
Clover is widely used ...
+[Telegram chat](tg://resolve?domain=COEXHelpdesk)...
+
### Free and open source
-The Clover software bundle is free, open source, and compatible with any PX4-based drone.
+The Clover software bundle is free, open source, and compatible with any PX4/ROS-based drone.
-## Raspberry Pi image
-
-Preconfigured image for Raspberry Pi with installed and configured software, ready to fly, is available [in the Releases section](https://github.com/CopterExpress/clover/releases).
-
-[](https://travis-ci.org/CopterExpress/clover)
-
-Image features:
-
-* Raspbian Buster
-* [ROS Melodic](http://wiki.ros.org/melodic)
-* Configured networking
-* OpenCV
-* [`mavros`](http://wiki.ros.org/mavros)
-* Periphery drivers for ROS ([GPIO](https://clover.coex.tech/en/gpio.html), [LED strip](https://clover.coex.tech/en/leds.html), etc)
-* `aruco_pose` package for marker-assisted navigation
-* `clover` package for autonomous drone control
-
-API description for autonomous flights is available [on GitBook](https://clover.coex.tech/en/simple_offboard.html).
+## Manual installation
For manual package installation and running see [`clover` package documentation](clover/README.md).
+## PX4 Dev Summit 2019 talk
+
+[](http://www.youtube.com/watch?v=CTG9E9PbJQ8)
+
## Other resources
* Official documentation: [https://clover.coex.tech](https://clover.coex.tech).
diff --git a/docs/assets/aruco.gif b/docs/assets/aruco.gif
new file mode 100644
index 00000000..2a050c90
Binary files /dev/null and b/docs/assets/aruco.gif differ
diff --git a/docs/assets/community/collage.jpg b/docs/assets/community/collage.jpg
new file mode 100644
index 00000000..191e6429
Binary files /dev/null and b/docs/assets/community/collage.jpg differ
diff --git a/docs/assets/optical-flow.gif b/docs/assets/optical-flow.gif
new file mode 100644
index 00000000..f2ce28bd
Binary files /dev/null and b/docs/assets/optical-flow.gif differ
diff --git a/docs/assets/simulator.jpg b/docs/assets/simulator.jpg
new file mode 100644
index 00000000..efe6c4aa
Binary files /dev/null and b/docs/assets/simulator.jpg differ