Typo "*@add_authenticator*"→"*\@add_authenticator*"

https://docs.microsoft.com/en-us/sql/t-sql/functions/decryptbykeyautoasymkey-transact-sql?view=sql-server-2017

Author: hyoshioka0128

docs/t-sql/functions/decryptbykeyautoasymkey-transact-sql.md

@@ -52,22 +52,22 @@ A variable of type **varbinary** containing data encrypted with the symmetric ke
 Indicates whether the original encryption process included, and encrypted, an authenticator together with the plaintext. Must match the value passed to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md) during the data encryption process. *add_authenticator* has a value of 1 if the encryption process used an authenticator. *add_authenticator* has an **int** data type.  
 
  @add_authenticator  
-A variable indicating whether the original encryption process included, and encrypted, an authenticator together with the plaintext. Must match the value passed to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md) during the data encryption process. *@add_authenticator* has an **int** data type.
+A variable indicating whether the original encryption process included, and encrypted, an authenticator together with the plaintext. Must match the value passed to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md) during the data encryption process. *\@add_authenticator* has an **int** data type.
 
  *authenticator*  
 The data used as the basis for the generation of the authenticator. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *authenticator* has a **sysname** data type.  
 
  @authenticator  
-A variable containing data from which an authenticator generates. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *@authenticator* has a **sysname** data type.  
+A variable containing data from which an authenticator generates. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *\@authenticator* has a **sysname** data type.  
 
 @add_authenticator  
-A variable indicating whether the original encryption process included, and encrypted, an authenticator together with the plaintext. Must match the value passed to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md) during the data encryption process. *@add_authenticator* has an **int** data type.  
+A variable indicating whether the original encryption process included, and encrypted, an authenticator together with the plaintext. Must match the value passed to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md) during the data encryption process. *\@add_authenticator* has an **int** data type.  
 
 *authenticator*  
 The data used as the basis for the generation of the authenticator. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *authenticator* has a **sysname** data type.
 
 @authenticator  
-A variable containing data from which an authenticator generates. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *@authenticator* has a **sysname** data type.  
+A variable containing data from which an authenticator generates. Must match the value supplied to [ENCRYPTBYKEY (Transact-SQL)](./encryptbykey-transact-sql.md). *\@authenticator* has a **sysname** data type.  
 
 ## Return Types  
 **varbinary**, with a maximum size of 8,000 bytes.