fix capitalization issue per Acrolinx

Author: GitHubber17

articles/virtual-network/security-overview.md

@@ -85,7 +85,7 @@ Azure creates the following default rules in each network security group that yo
 |---|---|---|---|---|---|---|
 | 65500 | 0.0.0.0/0 | 0-65535 | 0.0.0.0/0 | 0-65535 | Any | Deny |
 
-In the **Source** and **Destination** columns, *VirtualNetwork*, *AzureLoadBalancer*, and *Internet* are [service tags](service-tags-overview.md), rather than IP addresses. In the protocol column, **Any** encompasses TCP, UDP, and ICMP. When creating a rule, you can specify TCP, UDP, ICMP or Any. *0.0.0.0/0* in the **Source** and **Destination** columns represents all addresses. Clients like Azure portal, Azure CLI, or Powershell can use * or any for this expression.
+In the **Source** and **Destination** columns, *VirtualNetwork*, *AzureLoadBalancer*, and *Internet* are [service tags](service-tags-overview.md), rather than IP addresses. In the protocol column, **Any** encompasses TCP, UDP, and ICMP. When creating a rule, you can specify TCP, UDP, ICMP or Any. *0.0.0.0/0* in the **Source** and **Destination** columns represents all addresses. Clients like Azure portal, Azure CLI, or PowerShell can use * or any for this expression.
 
 You cannot remove the default rules, but you can override them by creating rules with higher priorities.