Update DistributedContextPropagator.xml (#8491)

Author: vishweshbankwar

xml/System.Diagnostics/DistributedContextPropagator.xml

@@ -247,7 +247,7 @@
         <param name="activity">The Activity object has the distributed context to inject to the carrier.</param>
         <param name="carrier">The medium in which the distributed context will be stored.</param>
         <param name="setter">The callback method to invoke to set a named key-value pair on the carrier.</param>
-        <summary>Injects the trace values stroed in the <see cref="T:System.Diagnostics.Activity" /> object into a carrier. For example, into the headers of an HTTP request.</summary>
+        <summary>Injects the trace values stored in the <see cref="T:System.Diagnostics.Activity" /> object into a carrier. For example, into the headers of an HTTP request.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>