Use the expanded YAML representation for the region list
This change aligns the default regions list with the nextstrain profile's list
and also places one region per line for cleaner git diffs in the future.
@@ -94,8 +94,9 @@ frequencies:
# Region-specific settings
#
-# Regions to build specific builds for using intelligent subsampling.
-regions: ["global"]
+# List of regions to build specific builds for using intelligent subsampling.
+regions:
+ - global
# Subsampling settings for region of focus and context.
subsample_focus:
