message: added link to PR
diff: * Fix crash on rollback of Table::optimize(). Currently unused by bindings.
  PR [#2753](https://github.com/realm/realm-core/pull/2753).
  * Update frozen TableViews when Table::swap() is called.
  + PR [#2757](https://github.com/realm/realm-core/pull/2757).
  ### Breaking changes
  