Fix span in cli-setup.md

Update tip span to add breaks for clear rendering.

Author: Amanda Butler

docs/tools/CLI/cli-setup/cli-setup.md

@@ -2,9 +2,7 @@
 
 You can install Mbed CLI on Windows, Linux and macOS.
 
-<span class="tips">**Tip:** If you're working on Windows or macOS, we recommend using the installers for Mbed CLI:
-- [Download the Windows installer for Mbed CLI](https://github.com/ARMmbed/mbed-cli-windows-installer/releases/latest). For details, please see [the documentation](../tools/windows.html).
-- [Download the macOS installer for Mbed CLI](https://github.com/ARMmbed/mbed-cli-osx-installer/releases/latest). For details, please see [the documentation](../tools/macos.html).</span>
+<span class="tips">**Tip:** If you're working on Windows or macOS, we recommend using the installers for Mbed CLI:<br>- [Download the Windows installer for Mbed CLI](https://github.com/ARMmbed/mbed-cli-windows-installer/releases/latest). For details, please see [the documentation](../tools/windows.html).<br>- [Download the macOS installer for Mbed CLI](https://github.com/ARMmbed/mbed-cli-osx-installer/releases/latest). For details, please see [the documentation](../tools/macos.html).</span>
 
 For Linux, please [install Mbed CLI manually](../tools/linux.html).