README.md in preserve-rds-snapshot-0.3.0 vs README.md in preserve-rds-snapshot-0.3.1

@@ -8,14 +8,16 @@
   * describe_db_instances
   * describe_db_snapshots
   * copy_db_snapshot
   * delete_db_snapshots
   * list_tags_for_resources
+  * add_tags_to_resources
+  * remove_tags_from_resources
 * EC2
   * describe_security_groups
 
-NOTE: describe_security_groups is required to get the AWS Account Number. You can use the '--aws-account-number' option instead.
+NOTE: describe_security_groups is required to get the AWS Account Number. You can use the `--aws-account-number` option instead.
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -35,10 +37,11 @@
 
 ```
 Commands:
   preserve-rds-snapshot copy -o src -t target  # copy snapshot
   preserve-rds-snapshot help [COMMAND]         # Describe available commands or one specific command
+  preserve-rds-snapshot init                   # initialize instance
   preserve-rds-snapshot latest                 # show latest snapshot
   preserve-rds-snapshot list                   # Show list of RDS Snapshots
   preserve-rds-snapshot preserve               # copy automated snapshot to manual
 
 Options:
@@ -46,19 +49,28 @@
   k, [--access-key-id=ACCESS_KEY_ID]                       # AWS access key id.
   s, [--secret-access-key=SECRET_ACCESS_KEY]               # AWS secret access key.
   r, [--region=REGION]                                     # AWS region.
       [--shared-credentials-path=SHARED_CREDENTIALS_PATH]  # AWS shared credentials path.
   i, [--instance=INSTANCE]                                 # target DB Instance
-
-Options:
-  p, [--profile=PROFILE]                                   # Load credentials by profile name from shared credentials file.
-  k, [--access-key-id=ACCESS_KEY_ID]                       # AWS access key id.
-  s, [--secret-access-key=SECRET_ACCESS_KEY]               # AWS secret access key.
-  r, [--region=REGION]                                     # AWS region.
-      [--shared-credentials-path=SHARED_CREDENTIALS_PATH]  # AWS shared credentials path.
-  i, [--instance=INSTANCE]                                 # target DB Instance
+  n, [--aws-account-number=AWS_ACCOUNT_NUMBER]             # AWS Account Number (ex: 012345678901)
+      [--dry-run], [--no-dry-run]                          # show only, don't modify
  ```
 
+### initialize instance
+
+```
+$ preserve-rds-snapshot init
+```
+
+init subcommand add 'preserve-rds-snapshot' tag to RDS instance.
+
+### preserve snapshot
+
+```
+$ preserve-rds-snapshot preserve
+```
+
+preserve subcommand copy automated snapshot to manual snapshot.
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `bin/console` for an interactive prompt that will allow you to experiment. Run `bundle exec preserve-rds-snapshot` to use the code located in this directory, ignoring other installed copies of this gem.