chore(storybook): update welcome page

Author: matteovivona

stories/welcome.stories.mdx

@@ -2,7 +2,7 @@ import { Meta } from '@storybook/addon-docs/blocks';
 
 <Meta title="Welcome" />
 
-# HospitalRun Components
+<img src="https://raw.githubusercontent.com/HospitalRun/design/master/logo/horizontal/logo-on-transparent.png" alt="HospitalRun logo"/>
 
 <div align="center">
 
@@ -13,4 +13,4 @@ import { Meta } from '@storybook/addon-docs/blocks';
 
 This Storybook show reusable React components made for the HospitalRun frontend. It's a place for designers and developers alike to collaborate quickly. This library makes up the text inputs, labels, etc of HospitalRun Frontend.
 
-## [For more information and instructions on how to use these React components see the Readme](https://github.com/HospitalRun/components)
+<strong>For more information and instructions on how to use these React components [see the Readme](https://github.com/HospitalRun/components)</strong>