Apply suggestions from code review

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

Author: effigies

src/common-principles.md

@@ -352,8 +352,8 @@ Derivatives can be stored/distributed in two ways:
     [`MNI152NLin2009cAsym` standard space](appendices/coordinate-systems.md):
 
     ```Plain
-    <dataset>/derivatives/atlas-generator/sub-0001
-    <dataset>/derivatives/atlas-generator/tpl-MNI152NLin2009cAsym
+    <dataset>/derivatives/atlasgenerator/sub-0001
+    <dataset>/derivatives/atlasgenerator/tpl-MNI152NLin2009cAsym
     ```
 
     Example of a pipeline with nested derivative directories:

src/derivatives/atlas.md

@@ -34,7 +34,7 @@ aggregation thereof.
 Template:
 
 ```Text
-<pipeline_name>/
+<pipeline-name>/
     tpl-<label>/
         [cohort-<label>/]
            [<datatype>/]