Update src/derivatives/atlas.md

Co-authored-by: Yaroslav Halchenko <debian@onerussian.com>

Author: effigies

src/derivatives/atlas.md

@@ -108,7 +108,7 @@ A guide for using macros can be found at
 ### Example: Multi-cohort template
 
 In the case that the template-generating pipeline derives
-several cohorts, the file structure must employ the
+results for several cohorts, the file structure must employ the
 [`cohort-<label>` directory and entity](../appendices/entities.md#cohort).
 
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