Metadata layout/intro/outro should be all set now

Will use this as a model for the others

Author: vdauwera

docs/side_quests/metadata.md

@@ -858,15 +858,16 @@ In this section, you've learned how to:
 ## Summary
 
 In this side quest, you've explored how to effectively work with metadata in Nextflow workflows.
-This pattern of keeping metadata explicit and attached to the data is a core best practice in Nextflow that enables building robust, maintainable bioinformatics workflows.
 
-This approach offers several advantages over hardcoding file information:
+This pattern of keeping metadata explicit and attached to the data is a core best practice in Nextflow, offering several advantages over hardcoding file information:
 
 - File metadata stays associated with files throughout the workflow
 - Process behavior can be customized per file
 - Output organization can reflect file metadata
 - File information can be expanded during pipeline execution
 
+Applying this pattern in your own work will enable you to build robust, maintainable bioinformatics workflows.
+
 ### Key learnings
 
 1.  **Reading and Structuring Metadata:** Reading CSV files and creating organized metadata maps that stay associated with your data files.