CHanged default values

Author: Shubha Narayanan

modules/oc-mirror-command-reference-v2-delete.adoc

@@ -49,10 +49,10 @@ The following tables describe the `oc mirror` subcommands and flags for deleting
 |Log level one of `info`, `debug`, `trace`, and `error`. The default value is `info`.
 
 |`--parallel-images <unit>`
-|Indicates the number of images deleted in parallel. The default value is `8`.
+|Indicates the number of images deleted in parallel. The default value is `4`.
 
 |`--parallel-layers <unit>`
-|Indicates the number of image layers mirrored in parallel. The default value is `10`.
+|Indicates the number of image layers mirrored in parallel. The default value is `5`.
 
 |`-p <unit>`, `--port <unit>`
 |HTTP port used by oc-mirror's local storage instance. The default value is `55000`.