Merge pull request MicrosoftDocs#42289 from MicrosoftDocs/repo_sync_working_branch

Resolve syncing conflicts from repo_sync_working_branch to master

Author: huypub

articles/azure-policy/azure-policy-introduction.md

@@ -127,7 +127,7 @@ For more information about policy parameters, see [Resource Policy Overview - Pa
 
 ## Initiative definition
 
-An initiative definition is collection of policy definitions that are tailored towards achieving a
+An initiative definition is a collection of policy definitions that are tailored towards achieving a
 singular overarching goal. Initiative definitions simplify managing and assigning policy
 definitions. They simplify by grouping a set of policies as one single item. For example, you could
 create an initiative titled **Enable Monitoring in Azure Security Center**, with a goal to monitor
@@ -234,4 +234,4 @@ next steps:
 - [Assign a policy definition using the Azure CLI](assign-policy-definition-cli.md)
 - [Assign a policy definition using PowerShell](assign-policy-definition-ps.md)
 - Review what a management group is with [Organize your resources with Azure Management Groups](../azure-resource-manager/management-groups-overview.md)
-- View [Govern your Azure environment through Azure Policy](https://channel9.msdn.com/events/Build/2018/THR2030) on Channel 9.
+- View [Govern your Azure environment through Azure Policy](https://channel9.msdn.com/events/Build/2018/THR2030) on Channel 9.