Update CLI Usage

CLI-Usage.md

@@ -49,7 +49,7 @@ Repertory supports multiple storage backends, each defined at mount time:
 
 ### Mount Sia
 ```bash
-repertory --sia --name my_sia_mount /mnt/sia
+repertory --name my_sia_mount /mnt/sia
 ```
 
 ### Mount S3
@@ -64,7 +64,7 @@ repertory --encrypt --name secure_data /mnt/secure
 
 ### Check Provider Version (renterd)
 ```bash
-repertory --sia --check_version
+repertory --check_version
 ```
 
 ### Launch Embedded GUI Only