Fix Az.KeyVault Syntax Errors

Author: v-yuzhichen

src/KeyVault/KeyVault/help/Export-AzKeyVaultSecurityDomain.md

@@ -33,7 +33,7 @@ Exports the security domain data of a managed HSM for importing on another HSM.
 
 ### Example 1
 ```powershell
-Export-AzKeyVaultSecurityDomain -Name testmhsm -Certificates {{pathOfCertificates}/sd1.cer, {pathOfCertificates}/sd2.cer, {pathOfCertificates}/sd3.cer} -OutputPath {{pathOfOutput}/sd.ps.json} -Quorum 2
+Export-AzKeyVaultSecurityDomain -Name testmhsm -Certificates {./sd1, ./sd2,./sd3} -OutputPath sd.ps.json -Quorum 2
 ```
 
 This command retrieves the managed HSM named testmhsm and saves a backup of that managed HSM security domain to the specified output file.

src/KeyVault/KeyVault/help/Import-AzKeyVaultSecurityDomain.md

@@ -34,7 +34,7 @@ This cmdlet imports previously exported security domain data to a managed HSM.
 ### Example 1
 ```powershell
 $keys = @{PublicKey = "sd1.cer"; PrivateKey = "sd1.key"}, @{PublicKey = "sd2.cer"; PrivateKey = "sd2.key"}, @{PublicKey = "sd3.cer"; PrivateKey = "sd3.key"}
-Import-AzKeyVaultSecurityDomain -Name testmhsm -Keys $keys -SecurityDomainPath {{pathOfBackup}\sd.ps.json}
+Import-AzKeyVaultSecurityDomain -Name testmhsm -Keys $keys -SecurityDomainPath sd.ps.json
 ```
 
 First, the keys need be provided to decrypt the security domain data.

src/KeyVault/KeyVault/help/Update-AzKeyVaultSecret.md

@@ -63,9 +63,8 @@ ContosoVault, using the stored variables.
 
 ### Example 2: Delete the tags and content type for a secret
 ```powershell
-$Tags = @{ 'Severity' = 'medium'; 'HR' = 'true'}
 $ContentType= 'xml'
-Update-AzKeyVaultSecret -VaultName 'ContosoVault' -Name 'HR' -Version '9EEA45C6EE50490B9C3176A80AC1A0DF' -ContentType $ContentType -Tag $Tags
+Update-AzKeyVaultSecret -VaultName 'ContosoVault' -Name 'HR' -Version '9EEA45C6EE50490B9C3176A80AC1A0DF' -ContentType $ContentType -Tag @{}
 ```
 
 This command deletes the tags and the content type for the specified version of the secret named HR