Bug Fix - Corrected outdated documentation for db_name field of the oci_database_autonomous_database resource.

Author: Andrew Jenner

website/docs/r/database_autonomous_database.html.markdown

@@ -128,7 +128,7 @@ The following arguments are supported:
 
   **Note:** This parameter cannot be used with the `dataStorageSizeInGBs` parameter. This input is ignored for Always Free resources.
 * `database_edition` - (Optional) (Updatable) The Oracle Database Edition that applies to the Autonomous databases.
-* `db_name` - (Required) (Updatable) The database name. The name must begin with an alphabetic character and can contain a maximum of 14 alphanumeric characters. Special characters are not permitted. The database name must be unique in the tenancy.
+* `db_name` - (Required) (Updatable) Specify the database name; it must consist of letters and numbers only. The maximum length is 30 characters. The same database name cannot be used for multiple Autonomous Databases in the same tenancy in the same region.
 * `db_version` - (Optional) (Updatable) A valid Oracle Database version for Autonomous Database.`db_workload` AJD and APEX are only supported for `db_version` `19c` and above.
 * `db_workload` - (Optional) (Updatable) The Autonomous Database workload type. The following values are valid:
 	* OLTP - indicates an Autonomous Transaction Processing database