Fix environment variable name for db password. Extend action documentation with chunk and truncate.

Author: fkantelberg

docs/configuration.md

@@ -87,6 +87,8 @@ database. Actions are defined using a name and a dictionary in the `actions` sec
   domain: .. Search domain to specify specific records. Default is []
   values: .. Dictionary to define the new value of each field. Required.
   references: .. Dictionary of unique identifiers to XML references of Odoo
+  chunk: .. Update or delete is done in chunks of given size. Default is 0 (no chunks).
+  truncate: .. The delete action uses truncate .. cascade on the table instead.
 ```
 
 Values can be defined in multiple ways: directly or as a dictionary. Depending on the

docs/environment.md

@@ -3,7 +3,7 @@
 - BOOTSTRAP_MODE .. Environment mode
 - BOOTSTRAP_DEBUGGER .. Specify the debugger to use
   - Possible options: debugpy, dev (Odoo dev_mode)
-- PGPASSWORD .. Required. Postgres password of the database user.
+- DB_PASSWORD .. Required. Postgres password of the database user.
 - DB_VERSION .. Postgres version to use. If not set `latest`
 - ODOO_VERSION .. Odoo version to use with the format `x.0`
 - ODOO\_\* .. Odoo configuration variables. See `odoo.default.yaml`