L21207: Code box creating inconsistency (#5556)

* L21207:  Code box creating inconsistency

Hello, @mairaw,

Localization team has reported source content issue that causes localized version to have broken format compared to en-us version.  

Please review and merge the proposed file change to fix to target versions. If you make related fix in another PR  then share your PR number so we can confirm and close this PR.

Many thanks in advance.

* Update client-channel-factories-and-channels.md

Author: carolinacmoravia

docs/framework/wcf/extending/client-channel-factories-and-channels.md

@@ -18,11 +18,11 @@ A channel factory creates channels.
 
 -   The <xref:System.ServiceModel.Channels.CommunicationObject> class implements <xref:System.ServiceModel.ICommunicationObject> and enforces the state machine described in step 2 of [Developing Channels](../../../../docs/framework/wcf/extending/developing-channels.md).  
 
--   The``<xref:System.ServiceModel.Channels.ChannelManagerBase> class implements <xref:System.ServiceModel.Channels.CommunicationObject> and provides a unified base class for <xref:System.ServiceModel.Channels.ChannelFactoryBase?displayProperty=nameWithType> and <xref:System.ServiceModel.Channels.ChannelListenerBase?displayProperty=nameWithType>. The <xref:System.ServiceModel.Channels.ChannelManagerBase> class works in conjunction with <xref:System.ServiceModel.Channels.ChannelBase>, which is a base class that implements <xref:System.ServiceModel.Channels.IChannel>.  
+-   The <xref:System.ServiceModel.Channels.ChannelManagerBase> class implements <xref:System.ServiceModel.Channels.CommunicationObject> and provides a unified base class for <xref:System.ServiceModel.Channels.ChannelFactoryBase?displayProperty=nameWithType> and <xref:System.ServiceModel.Channels.ChannelListenerBase?displayProperty=nameWithType>. The <xref:System.ServiceModel.Channels.ChannelManagerBase> class works in conjunction with <xref:System.ServiceModel.Channels.ChannelBase>, which is a base class that implements <xref:System.ServiceModel.Channels.IChannel>.
 
--   The``<xref:System.ServiceModel.Channels.ChannelFactoryBase> class implements <xref:System.ServiceModel.Channels.ChannelManagerBase> and <xref:System.ServiceModel.Channels.IChannelFactory> and consolidates the `CreateChannel` overloads into one `OnCreateChannel` abstract method.  
+-   The <xref:System.ServiceModel.Channels.ChannelFactoryBase> class implements <xref:System.ServiceModel.Channels.ChannelManagerBase> and <xref:System.ServiceModel.Channels.IChannelFactory> and consolidates the `CreateChannel` overloads into one `OnCreateChannel` abstract method.
 
--   The``<xref:System.ServiceModel.Channels.ChannelListenerBase> class implements <xref:System.ServiceModel.Channels.IChannelListener>. It takes care of basic state management.  
+-   The <xref:System.ServiceModel.Channels.ChannelListenerBase> class implements <xref:System.ServiceModel.Channels.IChannelListener>. It takes care of basic state management. 
 
  The following discussion is based upon the [Transport: UDP](../../../../docs/framework/wcf/samples/transport-udp.md) sample.