message: doc(MigrationGuide): Updates for 1.0.0.a10
diff: *Note: this migration guide is a work in progress. itk-wasm is currently in
  the alpha development stage with additional changes anticipated
  -into December. Also, nearly all tests in the test suite pass, but DICOM series
  -reading, GE and JPEG format currently have issues.*
  +into December. Also, while nearly all tests in the test suite pass, GE and JPEG format currently have issues. Last updated December 20th, 2021.*
  **itk-wasm** is a major upgrade with a focus on univeral, performant computing in
  WebAssembly. The itk.js to itk-wasm transition also brings improvements
  @@ -51,7 +50,7 @@ to:
  import { IntTypes } from 'itk'
  ```
  -## Typescript support
  +## TypeScript support
  Typescript support was added, but, of course, you can still just use JavaScript if you wish. In itk-wasm, adoption of modern JavaScript constructs was extended, e.g. classes.
  @@ -124,7 +123,7 @@ Addresses an important issue in image orientation support.
  ## Image file format
  -The JSON file format is replaced by a WASM file format with a different layout. A directory, ending in `.iwi` or a `.iwi.zip` file is supported.
  +The JSON file format is replaced by a WASM file format with a different layout. A directory ending in `.iwi` or a `.iwi.zip` file is supported for images and a directory ending in `.iwm` and `.iwm.zip` is supported for meshes.
  ## Node Sync functions
  