enhance getting started (#5300)

Co-authored-by: Marc Skov Madsen <[email protected]>

CONTRIBUTING.MD

@@ -16,6 +16,6 @@ You can contribute in many ways, for example, by
 - Becoming a member of the [HoloViz Steering Committee](https://github.com/holoviz/holoviz/blob/main/doc/governance/org-docs/STEERING-COMMITTEE.md).
 - Improving our code base. For example, by improving doc strings, type annotations or tests.
 
-Before you start contributing to our code base or documentation, please make sure your contribution is well described and discussed in a [Github Issue](https://github.com/holoviz/panel/issues). To get started check out the [Developer Guide](https://panel.holoviz.org/developer_guide/index.html).
+Before you start contributing to our code base or documentation, please make sure your contribution is well described and discussed in a [Github Issue](https://github.com/holoviz/panel/issues). To **get started** check out the [Developer Guide](https://panel.holoviz.org/developer_guide/index.html).
 
 If you need help to get started, please reach out via [Discord](https://discord.gg/rb6gPXbdAr).