message: Add an update to the migration guide
  migrate-to-6(gh-page): add note to "Methods" that they got removed in "6.1.0-1"
diff: @@ -53,6 +53,8 @@ Hooks got (in 6.0.0-13) a change for the types to comply with the latest mongoos
  for virtual-populates use `@prop({ localField, foreignField })` and no more `overwrite` option is needed, it will auto detect if one of these values is included
  for normal virtuals, just use `get somevalue() { return ''; }` and `set somevalue(val: string) { }` (no more `@prop` needed)
  +Update: `@staticMethod` & `@instanceMethod` got removed in 6.1.0-1
  +
  ## setModelForClass got deprecated
  `setModelForClass()` got deprecated, because mongoose would throw an OverwriteModelError if attempted to overwrite a model
  