message: Add breaking note for ConnectionState changes
diff: @@ -48,11 +48,12 @@ For more details on GC and options for controlling its behavior, please see [thi
  - [`ISummarizerOptions` is deprecated](#isummarizerOptions-is-deprecated)
  - [connect() and disconnect() made mandatory on IContainer and IFluidContainer](#connect-and-disconnect-made-mandatory-on-icontainer-and-ifluidcontainer)
  - [Remove Const Enums from Merge Tree, Sequence, and Shared String](#Remove-Const-Enums-from-Merge-Tree-Sequence-and-Shared-String)
  -- [Remove Container.setAutoReconnect() and Container.resume()](#Remove-Container-setAutoReconnect-and-resume)
  -- [Remove IContainer.connected and IFluidContainer.connected](#Remove-IContainer-connected-and-IFluidContainer-connected)
  +- [Remove Container.setAutoReconnect() and Container.resume()](#remove-containersetautoreconnect-and-containerresume)
  +- [Remove IContainer.connected and IFluidContainer.connected](#remove-icontainerconnected-and-ifluidcontainerconnected)
  - [All IFluidObject Augmentations Removed](#All-IFluidObject-Augmentations-Removed)
  - [Remove `noopTimeFrequency` and `noopCountFrequency` from ILoaderOptions](#remove-nooptimefrequency-and-noopcountfrequency-from-iloaderoptions)
  -- [proxyLoaderFactories members removed from ILoaderProps and ILoaderServices](#proxyLoaderFactories-members-removed-from-ILoaderProps-and-ILoaderServices)
  +- [proxyLoaderFactories members removed from ILoaderProps and ILoaderServices](#proxyloaderfactories-members-to-be-removed-from-iloaderprops-and-iloaderservices)
  +- [IContainer.connectionState yields finer-grained ConnectionState values](#icontainerconnectionstate-yields-finer-grained-connectionstate-values)
  ### Changed AzureConnectionConfig API
  - Added a `type` field that's used to differentiate between remote and local connections.
  @@ -141,6 +142,19 @@ The properties `IContainer.connected` and `IFluidContainer.connected` were depre
  ### proxyLoaderFactories members to be removed from ILoaderProps and ILoaderServices
  The `proxyLoaderFactories` member on `ILoaderProps` and `ILoaderServices` was deprecated in 0.59 and has now been removed.
  +### IContainer.connectionState yields finer-grained ConnectionState values
  +In both `@fluidframework/container-definitions` and `@fluidframework/container-loader` packages,
  +the `ConnectionState` types have been updated to include a new state which previously was
  +encompassed by the `Disconnected` state. The new state is `EstablishingConnection` and indicates that the container is
  +attempting to connect to the ordering service, but is not yet connected.
  +
  +Any logic based on the `Disconnected` state (e.g. checking the value of `connectionState` on either `IContainer` and `Container`)
  +should be updated depending on how you want to treat this new `EstablishingConnection` state.
  +
  +Additionally, please note that the `Connecting` state is being renamed to `CatchingUp`.
  +`ConnectionState.Connecting` is marked as deprecated, please use `ConnectionState.CatchingUp` instead.
  +`ConnectionState.Connecting` will be removed in the following major release.
  +
  # 0.59
  ## 0.59 Upcoming changes
  