Merge branch 'master' of https://github.com/MicrosoftDocs/azure-docs-pr into DKS-US1680669-1

Author: dksimpson

articles/active-directory-b2c/custom-policy-password-complexity.md

@@ -149,4 +149,4 @@ To configure the password complexity, override the `newPassword` and `reenterPas
 ## Next steps
 
 - Learn how to [Configure password change using custom policies in Azure Active Directory B2C](custom-policy-password-change.md).
-- - Learn more about the [Predicates](predicates.md) and [PredicateValidations](predicates.md#predicatevalidations) elements in the IEF reference.
+- Learn more about the [Predicates](predicates.md) and [PredicateValidations](predicates.md#predicatevalidations) elements in the IEF reference.

articles/machine-learning/algorithm-module-reference/enter-data-manually.md

@@ -57,13 +57,13 @@ This module can be helpful in scenarios such as these:
 
     -   **ARFF**:  Paste in an existing ARFF format file. If you are typing values directly, be sure to add the optional header and required attribute fields at the  beginning of the data. 
 
-        For example, the following header and attribute rows could be added to a simple list. The column heading would be `SampleText`.
+        For example, the following header and attribute rows could be added to a simple list. The column heading would be `SampleText`. Note that String type is not supported.
 
         ```text
-        % Title: SampleText.ARFF  
-        % Source: Enter Data module  
-        @ATTRIBUTE SampleText STRING  
-        @DATA  
+        % Title: SampleText.ARFF
+        % Source: Enter Data module
+        @ATTRIBUTE SampleText NUMERIC
+        @DATA
         \<type first data row here>  
         ```
 

articles/security-center/security-center-alert-validation.md

@@ -32,7 +32,7 @@ For more information, see [Security alerts in Security Center](security-center-a
 
 After Security Center agent is installed on your computer, follow these steps from the computer where you want to be the attacked resource of the alert:
 
-1. Copy an executable (for example **calc.exe**) to the computer’s desktop, or other directory of your convenience, and rename it as **ASC_AlertTest_662jfi039N.exe**.
+1. Copy an executable (for example **calc.exe**) to the computer's desktop, or other directory of your convenience, and rename it as **ASC_AlertTest_662jfi039N.exe**.
 1. Open the command prompt and execute this file with an argument (just a fake argument name), such as: ```ASC_AlertTest_662jfi039N.exe -foo```
 1. Wait 5 to 10 minutes and open Security Center Alerts. An alert similar to the [example](#alert-validate) below should be displayed:
 
@@ -70,8 +70,7 @@ For more information about the integration of Azure Kubernetes Service and Azure
 ## Next steps
 This article introduced you to the alerts validation process. Now that you're familiar with this validation, try the following articles:
 
+* [Validating Azure Key Vault Threat Detection in Azure Security Center](https://techcommunity.microsoft.com/t5/azure-security-center/validating-azure-key-vault-threat-detection-in-azure-security/ba-p/1220336)
 * [Managing and responding to security alerts in Azure Security Center](https://docs.microsoft.com/azure/security-center/security-center-managing-and-responding-alerts) - Learn how to manage alerts, and respond to security incidents in Security Center.
 * [Security health monitoring in Azure Security Center](security-center-monitoring.md) - Learn how to monitor the health of your Azure resources.
 * [Understanding security alerts in Azure Security Center](https://docs.microsoft.com/azure/security-center/security-center-alerts-type) - Learn about the different types of security alerts.
-* [Azure Security Center Troubleshooting Guide](https://docs.microsoft.com/azure/security-center/security-center-troubleshooting-guide) - Learn how to troubleshoot common issues in Security Center.
-* [Azure Security Blog](https://blogs.msdn.com/b/azuresecurity/) - Find blog posts about Azure security and compliance.