diff --git a/01 query_word_cloud.py b/01_query_word_cloud.py similarity index 100% rename from 01 query_word_cloud.py rename to 01_query_word_cloud.py diff --git a/02 searches_time.py b/02_searches_time.py similarity index 100% rename from 02 searches_time.py rename to 02_searches_time.py diff --git a/03 hansken_facet_heatmap.py b/03_hansken_facet_heatmap.py similarity index 100% rename from 03 hansken_facet_heatmap.py rename to 03_hansken_facet_heatmap.py diff --git a/04 types_in_piechart.py b/04_types_in_piechart.py similarity index 100% rename from 04 types_in_piechart.py rename to 04_types_in_piechart.py diff --git a/05 unique_values_treemap_chatmessage.py b/05_unique_values_treemap_chatmessage.py similarity index 100% rename from 05 unique_values_treemap_chatmessage.py rename to 05_unique_values_treemap_chatmessage.py