README.md in rails-pg-extras-1.1.0 vs README.md in rails-pg-extras-1.2.0

@@ -241,10 +241,10 @@
  charities_customers                                           |   73 MB
  charities                                                     |   66 MB
 (truncated results for brevity)
 ```
 
-This command displays the size of each table in the database, in MB. It is calculated by using the system administration function `pg_table_size()`, which includes the size of the main data fork, free space map, visibility map and TOAST data.
+This command displays the size of each table and materialized view in the database, in MB. It is calculated by using the system administration function `pg_table_size()`, which includes the size of the main data fork, free space map, visibility map and TOAST data.
 
 ### `table_indexes_size`
 
 ```
 $ rake pg_extras:table-indexes-size