Modified parameters

Author: Alexander (Sasha) Nosov

samples/manage/azure-arc-enabled-sql-server/uninstall-azure-extension-for-sql-server/README.md

@@ -25,10 +25,10 @@ The script accepts the following command line parameters:
 
 | **Parameter**                                          | **Value**                                                                       | **Description** |
 |:--|:--|:--|
-|-SubId|subscription_id *or* a file_name|Optional: subscription id or a .csv file with the list of subscriptions<sup>1</sup>. |
+|-SubId|subscription_id *or* a file_name *or* ALL |Required: modify a specific subscription id, a list of subscriptions in a .csv file<sup>1</sup>, or ALL subscriptions |
 |-ResourceGroup |resource_group_name|Optional: Limit the scope  to a specific resource group|
 |-MachineName |machine_name|Optional: Limit the scope to a specific machine|
-|-All|\$True or \$False (default)|Optional. Uninstall Azure extension on all Arc-enabled servers in all subscriptions you have contributor access to.|
+
 
 <sup>1</sup>You can create a .csv file using the following command and then edit to remove the subscriptions you don't  want to scan.
 ```PowerShell

samples/manage/azure-arc-enabled-sql-server/uninstall-azure-extension-for-sql-server/uninstall-azure-extension-for-sql-server.ps1

@@ -19,7 +19,7 @@ param (
     [string] $SubId, 
     [Parameter (Mandatory= $false)] 
     [string] $ResourceGroup, 
-    [Parameter (Mandatory= $true)] 
+    [Parameter (Mandatory= $false)] 
     [string] $MachineName
  )