add documentation and update xray package

Author: amirkaws

libraries/src/AWS.Lambda.Powertools.Tracing/AWS.Lambda.Powertools.Tracing.csproj

@@ -30,7 +30,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="AWSSDK.XRay" Version="3.7.102.25" />
+        <PackageReference Include="AWSSDK.XRay" Version="3.7.200.34" />
         <PackageReference Include="AWSXRayRecorder.Core" Version="2.14.0" />
         <PackageReference Include="AWSXRayRecorder.Handlers.AwsSdk" Version="2.12.0" />
     </ItemGroup>