Update installation instructions

Author: rvsia

packages/react-renderer-demo/src/app/pages/renderer/installation.md

@@ -7,6 +7,8 @@ import ListOfContents from '../../src/helpers/list-of-contents';
 
 # Installation
 
+React Form Renderer is the basic component, that provides all features.
+
 ```sh
 npm install --save @data-driven-forms/react-form-renderer
 ```
@@ -15,6 +17,44 @@ or
 yarn add @data-driven-forms/react-form-renderer
 ```
 
+## Mappers
+
+Data Driven Forms team provides and mantains basic set of components for following three design systems: [MaterialUI](https://material-ui.com/), [PatternFly 4](https://www.patternfly.org/v4/) anad [PatternFly 3](https://www.patternfly.org/v3/).
+
+**mui-component-mapper**
+
+```sh
+npm install --save @data-driven-forms/mui-component-mapper
+```
+or
+```sh
+yarn add @data-driven-forms/mui-component-mapper
+```
+
+**pf4-component-mapper**
+
+```sh
+npm install --save @data-driven-forms/pf4-component-mapper
+```
+or
+```sh
+yarn add @data-driven-forms/pf4-component-mapper
+```
+
+**pf3-component-mapper**
+
+```sh
+npm install --save @data-driven-forms/pf3-component-mapper
+```
+or
+```sh
+yarn add @data-driven-forms/pf3-component-mapper
+```
+
+## Versioning
+
+All these packages all always deployed together, so their version numbers are always the same. Update them also together to achieve the best compatibility.
+
 </Grid>
 <Grid item xs={false} md={2}>
   <ListOfContents file="renderer/installation" />