docs: add templates section

Author: mrholek

README.md

@@ -14,6 +14,7 @@ CoreUI is meant to be the UX game changer. Pure & transparent code is devoid of
 
 * [Versions](#versions)
 * [CoreUI Pro](#coreui-pro)
+* [CoreUI Pro based admin templates](#coreui-pro-based-admin-templates)
 * [Installation](#installation)
 * [Usage](#usage)
 * [What's included](#whats-included)
@@ -47,6 +48,12 @@ CoreUI is meant to be the UX game changer. Pure & transparent code is devoid of
 * 💪  [CoreUI Pro React Admin Template](https://coreui.io/pro/react)
 * 💪  [CoreUI Pro Vue Admin Template](https://coreui.io/pro/vue)
 
+## CoreUI Pro based admin templates
+
+| CoreUI Pro | Prime | Root | Alba | Leaf |
+| --- | --- | --- | --- | --- |
+| [![CoreUI Pro Admin Template](https://coreui.io/assets/img/example-coureui.jpg)](https://coreui.io/pro/) | [![Prime Admin Template](https://genesisui.com/assets/img/templates/prime1280.jpg)](https://genesisui.com/admin-templates/bootstrap/prime/?support=1) | [![Root Admin Template](https://genesisui.com/assets/img/templates/root1280.jpg)](https://genesisui.com/admin-templates/bootstrap/root/?support=1) | [![Alba Admin Template](https://genesisui.com/assets/img/templates/alba1280.jpg)](https://genesisui.com/admin-templates/bootstrap/alba/?support=1) | [![Leaf Admin Template](https://genesisui.com/assets/img/templates/leaf1280.jpg)](https://genesisui.com/admin-templates/bootstrap/leaf/?support=1)
+
 ## Installation
 
 ``` bash