docs: update README (#348)

Author: mitrotasios

README.md

@@ -136,7 +136,6 @@ const nextConfig = {
 
 With tremor creating an analytical interface is easy.
 
-<br>
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 ```jsx
@@ -160,6 +159,8 @@ export default () => (
 
 <br>
 
+If you want to see how you can build your first dashboard, have a look at our [documentation](https://tremor.so/docs/getting-started/demo-dashboard).
+
 ## Community and Contribution
 
 We are always looking for new ideas or other ways to improve tremor. If you have developed anything cool or found a bug, send us a pull request.