394 Describe baseline and it's usage in README
@@ -248,6 +248,20 @@ Usage::
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+Baseline
+--------
+Bandit allows specifying the path of a baseline report to compare against using the base line argument (i.e. ``-b BASELINE`` or ``--baseline BASELINE``).
+
+::
+
+ bandit -b BASELINE
+
+This is useful for ignoring known vulnerabilities that you believe are non-issues (e.g. a cleartext password in a unit test). To generate a baseline report simply run Bandit with the output format set to ``json`` (only JSON-formatted files are accepted as a baseline) an output file path specified:
+
+::
+
+ bandit -f json -o PATH_TO_OUTPUT_FILE
+
Configuration
-------------
