update README

README.md

@@ -90,3 +90,22 @@ Progress Tracker
 ----------------
 
 Wrote a small go helper [ProgressTracker](https://gitlab.com/balki/ytui/-/blob/main/pubsub/pt.go), to watch for progress and update subscribers. Hope it is useful elsewhere too. It has full unit test coverage
+
+
+Tips
+----
+## Quick view of the db in command line. 
+
+Needs [yq](https://github.com/mikefarah/yq) and [xsv](https://github.com/burntsushi/xsv) installed
+
+    yq --from-file /dev/fd/7 ./db.json -o csv 7<<'EOM' | xsv table
+    .items
+    | del(.[] | .url)
+    | (
+        [ .[0] | keys ] + 
+        [ .[] 
+          | .title |= sub("\n", "") 
+          | [.*] 
+        ]
+      )
+    EOM