Add unique ID to migrate-from-mbed-os-2-to-5.md

Amanda Butler · web-flow · commit 99707e9650cc · 2019-12-04T10:49:42.000-06:00
Add unique heading ID, so we can link to this section.
diff --git a/docs/tutorials/migrate-from-mbed-os-2-to-5.md b/docs/tutorials/migrate-from-mbed-os-2-to-5.md
@@ -169,7 +169,7 @@ Now, the program successfully compiles.
 
 Although the program or library now compiles successfully, runtime errors may still be present. Please visit the [compile-time errors tutorial](compile-time-errors.html#runtime-errors-and-lights-of-the-dead) for further debugging tips about common errors.
 
-## Enabling Mbed OS bare metal
+<h2 id="enabling-bare-metal">Enabling Mbed OS bare metal</h2>
 
 Enabling the Mbed OS bare metal profile allows you to build Mbed OS without an RTOS. To enable it, you have to complete the [migration to Mbed OS 5](#migrating-to-mbed-os-5). Once the migration is complete, you can enable Mbed OS bare metal by creating an `mbed_app.json` with the following contents:
 
