Update New-AzureRmAnalysisServicesFirewallConfig.md

Removed "s" from the end of the parameter "FirewallRules". 
Changed description in the example so that it includes that PowerBI access is enabled. 
Changed releated link so it points to New-AzureRmAnalysisServicesFirewallRule instead of referencing itself.

Author: stiglyt

src/ResourceManager/AnalysisServices/Commands.AnalysisServices/help/New-AzureRmAnalysisServicesFirewallConfig.md

@@ -13,7 +13,7 @@ Creates a new Analysis Services firewall config
 ## SYNTAX
 
 ```
-New-AzureRmAnalysisServicesFirewallConfig [-EnablePowerBIService] [-FirewallRules] List<Microsoft.Azure.Commands.AnalysisServices.Models.AzureAnalysisServicesFirewallRule> 
+New-AzureRmAnalysisServicesFirewallConfig [-EnablePowerBIService] [-FirewallRule] List<Microsoft.Azure.Commands.AnalysisServices.Models.AzureAnalysisServicesFirewallRule> 
 ```
 
 ## DESCRIPTION
@@ -25,15 +25,15 @@ The New-AzureRmAnalysisServicesFirewallConfig creates a new firewall config obje
 ```
 PS C:\> $rule1 = New-AzureRmAnalysisServicesFirewallRule -FirewallRuleName rule1 -RangeStart 0.0.0.0 -RangeEnd 255.255.255.255
 PS C:\> $rule2 = New-AzureRmAnalysisServicesFirewallRule -FirewallRuleName rule2 -RangeStart 6.6.6.6 -RangeEnd 7.7.7.7
-PS C:\> New-AzureRmAnalysisServicesFirewallConfig -EnablePowerBIService -FirewallRules $rule1,$rule2
+PS C:\> $config = New-AzureRmAnalysisServicesFirewallConfig -EnablePowerBIService -FirewallRule $rule1,$rule2
 ```
 
-Creates a firewall rule config without enabling power bi service.
+Creates a firewall config object with two rules while also enabling access from Power BI service.
 
 ## PARAMETERS
 
 ### -EnablePowerBIService
-A flag to indicate if enable PowerBI service
+A flag to indicate if the firewall is allowing access from Power BI
 
 ```yaml
 Type: SwitchParameter
@@ -47,7 +47,7 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
-### -FirewallRules
+### -FirewallRule
 A list of firewall rules
 
 ```yaml
@@ -70,4 +70,4 @@ Accept wildcard characters: False
 
 ## RELATED LINKS
 
-[New-AzureRmAnalysisServicesFirewallConfig](./New-AzureRmAnalysisServicesFirewallConfig.md)
+[New-AzureRmAnalysisServicesFirewallRule](./New-AzureRmAnalysisServicesFirewallRule.md)