Update visualize_metrics.py

collecton -> collection
experiemnts -> experiments

scripts/visualize_metrics.py

@@ -103,7 +103,7 @@ def load_run_metrics(
  run_dir,
  args=args,
 ):
- """load all the metrics for a collecton of experiemnts with the same architecture
+ """load all the metrics for a collection of experiments with the same architecture
  across various amounts of training data"""
  metric_data = {}
  from os import walk