fix(docs): Fix ErrorState examples (patternfly#148)

Author: fhlavac

packages/module/patternfly-docs/content/extensions/component-groups/examples/ErrorState/ErrorStateExample.tsx

@@ -1,4 +1,4 @@
 import React from 'react';
 import ErrorState from "@patternfly/react-component-groups/dist/dynamic/ErrorState";
 
-export const BasicExample: React.FunctionComponent = () => <ErrorState errorTitle='Sample error title' errorDescription='Sample error description' />;
+export const BasicExample: React.FunctionComponent = () => <ErrorState titleText='Sample error title' bodyText='Sample error description' />;

packages/module/patternfly-docs/content/extensions/component-groups/examples/ErrorState/ErrorStateFooterExample.tsx

@@ -3,6 +3,6 @@ import { Button } from '@patternfly/react-core';
 import ErrorState from "@patternfly/react-component-groups/dist/dynamic/ErrorState";
 
 // eslint-disable-next-line no-console
-export const BasicExample: React.FunctionComponent = () => <ErrorState errorTitle='Sample error title' errorDescription='Sample error description' customFooter={<Button variant="secondary" onClick={() => console.log("Custom button clicked")}>
+export const BasicExample: React.FunctionComponent = () => <ErrorState titleText='Sample error title' bodyText='Sample error description' customFooter={<Button variant="secondary" onClick={() => console.log("Custom button clicked")}>
 Custom action
 </Button>}/>;