Insert headline for fmt reset

Author: sourishkrout

docs/configuration/lifecycle-identity.md

@@ -30,6 +30,8 @@ runme fmt --write
 
 > Note: Each document or cell will have a unique identifier generated by Runme. Do not edit these to avoid conflicts.
 
+### Remove Lifecycle Identifiers
+
 To manually remove the lifecycle identities, cell- & doc-level, from your markdown file, use the following command:
 
 ```sh