diff --git a/README.md b/README.md
index 8639ced..dfcd9c7 100644
--- a/README.md
+++ b/README.md
@@ -1,59 +1,220 @@
-# sit-lnx.docker-engine
+# xoxys.docker-engine
+  
+[![Build Status](https://drone.rknet.org/api/badges/ansible/xoxys.docker-engine/status.svg)](https://drone.rknet.org/ansible/xoxys.docker-engine)
 
-Install docker engine. Currently only overlay2 as storage engine is supported.
 
-**Supported OS**
+Install Docker Engine
 
-* RHEL7
+## Table of content
 
-### Role Variables
+* [Default Variables](#default-variables)
+  * [dockerengine_package](#dockerengine_package)
+  * [dockerengine_packages_extra](#dockerengine_packages_extra)
+  * [dockerengine_docker_group_enabled](#dockerengine_docker_group_enabled)
+  * [dockerengine_secure_registries](#dockerengine_secure_registries)
+  * [dockerengine_insecure_registries](#dockerengine_insecure_registries)
+  * [dockerengine_block_registries](#dockerengine_block_registries)
+  * [dockerengine_storage_vg](#dockerengine_storage_vg)
+  * [dockerengine_storage_lv](#dockerengine_storage_lv)
+  * [dockerengine_storage_size](#dockerengine_storage_size)
+  * [dockerengine_base_dir](#dockerengine_base_dir)
+  * [dockerengine_cli_options](#dockerengine_cli_options)
+  * [dockerengine_usernamespace_enabled](#dockerengine_usernamespace_enabled)
+  * [dockerengine_nsremap_user](#dockerengine_nsremap_user)
+  * [dockerengine_nsremap_range_start](#dockerengine_nsremap_range_start)
+  * [dockerengine_nsremap_range_length](#dockerengine_nsremap_range_length)
+  * [dockerengine_http_proxy](#dockerengine_http_proxy)
+  * [dockerengine_https_proxy](#dockerengine_https_proxy)
+  * [dockerengine_no_proxy](#dockerengine_no_proxy)
+  * [dockerengine_storage_pvs](#dockerengine_storage_pvs)
+* [Dependencies](#dependencies)
+* [License](#license)
+* [Author](#author)
 
-```yaml
 ---
+
+## Default Variables
+
+### dockerengine_package
+
+#### Default value
+
+```YAML
 dockerengine_package: docker
-dockerengine_docker_group_enabled: False
+```
 
+### dockerengine_packages_extra
+
+The role requires epel repository and pip to work .You can use `dockerengine_packages_extra` to install these dependencys.
+
+#### Default value
+
+```YAML
+dockerengine_packages_extra: []
+```
+
+#### Example usage
+
+```YAML
+dockerengine_packages_extra:
+  - epel-release
+  - python2-pip
+```
+
+### dockerengine_docker_group_enabled
+
+#### Default value
+
+```YAML
+dockerengine_docker_group_enabled: false
+```
+
+### dockerengine_secure_registries
+
+#### Default value
+
+```YAML
 dockerengine_secure_registries: []
+```
+
+### dockerengine_insecure_registries
+
+#### Default value
+
+```YAML
 dockerengine_insecure_registries: []
+```
+
+### dockerengine_block_registries
+
+#### Default value
+
+```YAML
 dockerengine_block_registries: []
+```
 
-# dockerengine_http_proxy: # defaults to not set
-# dockerengine_https_proxy: # defaults to not set
-# dockerengine_no_proxy: # defaults to not set
+### dockerengine_storage_vg
 
-# dockerengine_storage_pvs: /dev/sdx # defaults to not set
+#### Default value
+
+```YAML
 dockerengine_storage_vg: vg_docker
-dockerengine_storage_lv: lv_docker
-dockerengine_storage_size: 100G
-dockerengine_base_dir: /var/lib/docker
+```
 
+### dockerengine_storage_lv
+
+#### Default value
+
+```YAML
+dockerengine_storage_lv: lv_docker
+```
+
+### dockerengine_storage_size
+
+#### Default value
+
+```YAML
+dockerengine_storage_size: 100G
+```
+
+### dockerengine_base_dir
+
+#### Default value
+
+```YAML
+dockerengine_base_dir: /var/lib/docker
+```
+
+### dockerengine_cli_options
+
+#### Default value
+
+```YAML
 dockerengine_cli_options:
   - selinux-enabled
   - log-driver=journald
+  - log-level=info
   - signature-verification=false
-
 ```
 
-### Examples
+### dockerengine_usernamespace_enabled
 
-#### Playbook
+#### Default value
 
-```yaml
----
-- hosts: docker-engine
-
-  roles:
-    - sit-lnx.docker-engine
+```YAML
+dockerengine_usernamespace_enabled: false
 ```
 
-### Dependencies
+### dockerengine_nsremap_user
 
-* you need the `wrap` custom filter from
+#### Default value
 
-### Maintainer
+```YAML
+dockerengine_nsremap_user: dockremap
+```
 
-[Robert Kaussow](https://gitea.rknet.org/xoxys)
+### dockerengine_nsremap_range_start
 
-### License
+#### Default value
 
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details
+```YAML
+dockerengine_nsremap_range_start: 231072
+```
+
+### dockerengine_nsremap_range_length
+
+#### Default value
+
+```YAML
+dockerengine_nsremap_range_length: 65536
+```
+
+### dockerengine_http_proxy
+
+#### Default value
+
+```YAML
+dockerengine_http_proxy: _unset_
+```
+
+### dockerengine_https_proxy
+
+#### Default value
+
+```YAML
+dockerengine_https_proxy: _unset
+```
+
+### dockerengine_no_proxy
+
+#### Default value
+
+```YAML
+dockerengine_no_proxy: _unset_
+```
+
+### dockerengine_storage_pvs
+
+#### Default value
+
+```YAML
+dockerengine_storage_pvs: _unset_
+```
+
+#### Example usage
+
+```YAML
+dockerengine_storage_pvs: /dev/sda
+```
+
+## Dependencies
+
+None.
+
+## License
+
+MIT
+
+## Author
+
+Robert Kaussow