message: Core Readme: reorder Key Concepts, remove Distributed Tracing
diff: @@ -29,13 +29,13 @@ target_link_libraries(<your project name> PRIVATE Azure::azure-core)
  The main shared concepts of `Azure::Core` include:
  -- HTTP pipeline and HTTP policies such as retry and logging, which are configurable via service client specific options.
  - Handling streaming data and input/output (I/O) via `BodyStream` along with its derived types.
  - Accessing HTTP response details for the returned model of any SDK client operation, via `Response<T>`.
  - Polling long-running operations (LROs), via `Operation<T>`.
  - Exceptions for reporting errors from service requests in a consistent fashion via the base exception type `RequestFailedException`.
  - Abstractions for Azure SDK credentials (`TokenCredential`).
  - Replaceable HTTP transport layer to send requests and receive responses over the network.
  +- HTTP pipeline and HTTP policies such as retry and logging, which are configurable via service client specific options.
  ### Long Running Operations
  @@ -75,7 +75,6 @@ Three main ways of troubleshooting failures are:
  - Inspecting exceptions
  - Enabling logging (see [SDK Log Messages](#sdk-log-messages))
  -- Distributed tracing (`Available in future release`)
  ### SDK Log Messages
  