doc: update README.md with new instructions

Add new instructions to manage `PAUSE` and `PAUSE_TIME` env vars.

README.md

@@ -6,6 +6,17 @@ Repository to manage the configuration of the CDS init container based on busybo
 | Name      | Default Value                                                  | Description                                                 |
 |-----------|----------------------------------------------------------------|-------------------------------------------------------------|
 | REPO_PATH | https://raw.github.com/entando-ps/cds/entando720/entando-data/ | The path of the GitHub repository used to store the archive |
-| ARCHIVE_NAME | entando720.tar.gz | The name of the archive containing all the Entando static resources |
-| FORCE_CDS | false | Needed to force the overwriting of the volume | 
+| ARCHIVE_NAME | entando730.tar.gz                                              | The name of the archive containing all the Entando static resources |
+| FORCE_CDS | false                                                          | Needed to force the overwriting of the volume | 
+| PAUSE   | false                                                          | Used to stop the init-container execution for a specified amount of time | SUSPEND_TIME |     | Pause for number
+| PAUSE_TIME |                                                                | Pause for number seconds(default value). `s[default], m, h, d` can be specified as suffix to express:                  |
 
+- **3s** -> 3 seconds
+- **3m** -> 3 minutes
+- **3h** -> 3 hours
+- **3d** -> 3 days
+
+
+
+
+If `PAUSE` is true, then also `PAUSE_TIME` must be specified.