add use of update.py to README, with warning about it

diff --git a/README.txt b/README.txt
index 75651460716ca454583bf8bcacb8d002d27298ba..cb29f299dd56ca02d51570404a5b24db4d5fe529 100644 (file)
--- a/README.txt
+++ b/README.txt
@@ -19,3 +19,16 @@ then examine the nohup.out and also the individual markdown files,
 or compile to html first (after apt-get install python-markdown):
 
     markdown_py -f lkcl.html lkcl.mdwn
+
+to perform multiple *DIRECT* database updates automatically, use the
+following command:
+
+    python3 ./src/budget_sync/update.py -c budget-sync-config.toml \
+            --user {name_in_TOML_field} \
+            --username {BUGZILLA_EMAIL} \
+            --password '{BUGZILLA_PASSWORD}' \
+            --bug NNN,MMM,OOO \
+            --submitted=YYYY-MM-DD or --paid=YYYY-MM-DD
+
+**PLEASE EXERCISE EXTREME CAUTION WHEN USING THIS COMMAND**
+