diff --git a/README.md b/README.md
index b93bdfc..be98457 100644
--- a/README.md
+++ b/README.md
@@ -46,4 +46,20 @@ options:
                         CSV output directory; CWD by default
   --debug               stop on exception for debugging
   -q, --quiet           avoid prints; ignored by --debug
+
+$ python colligere/analizer.py -k metadata.record.catalogingLanguage metadata.jsonl
+
+⏳🍺💃🕺🎉⏳
+
+$ cat res.metadata.record.catalogingLanguage.csv | head
+key,len,freq
+eng,664,0.35622
+und,99,0.05311
+fre,90,0.04828
+spa,65,0.03487
+ger,133,0.07135
+ara,10,0.00536
+zxx,23,0.01234
+heb,6,0.00322
+jpn,20,0.01073
 ```