Update cleared value docs example.

Author: Hyperkid123

packages/react-renderer-demo/src/app/src/doc-components/cleared-value.js renamed to packages/react-renderer-demo/src/app/examples/components/cleared-value.js

@@ -1,5 +1,5 @@
 import Grid from '@material-ui/core/Grid'
-import RawComponent from '@docs/raw-component';
+import CodeExample from '../../src/components/code-example'
 
 import ListOfContents from '../../src/helpers/list-of-contents';
 
@@ -11,7 +11,7 @@ import ListOfContents from '../../src/helpers/list-of-contents';
 The value to send upon a submit if the field is empty. This wildcard value can be used to distinguish between an untouched field and a cleared one (it will be only used when field has initialValue). For example if you have a form that edits an entity and you would like to clear an attribute. Some APIs require the value to be set to null to register the change.
 
 
-<RawComponent source="cleared-value" />
+<CodeExample source="components/cleared-value" mode="preview" />
 
 </Grid>
 <Grid item xs={false} md={2}>