revert changes to README

Author: marcossevilla

README.md

@@ -121,10 +121,12 @@ Below is a list of rules that are not enabled by default together with the reaso
 | [`prefer_void_to_null`](https://dart.dev/tools/linter-rules/prefer_void_to_null) | [Has unresolved false positives](https://github.com/dart-lang/linter/issues/4758) |
 | [`require_trailing_commas`](https://dart.dev/tools/linter-rules/require_trailing_commas) | Not specified |
 | [`specify_nonobvious_local_variable_types`](https://dart.dev/tools/linter-rules/specify_nonobvious_local_variable_types) | Not specified |
+| [`switch_on_type`](https://dart.dev/tools/linter-rules/switch_on_type) | Not specified |
 | [`unnecessary_async`](https://dart.dev/tools/linter-rules/unnecessary_async) | Not specified |
 | [`unnecessary_final`](https://dart.dev/tools/linter-rules/unnecessary_final) | Incompatible with [prefer_final_locals](https://dart.dev/tools/linter-rules/prefer_final_locals) |
 | [`unnecessary_ignore`](https://dart.dev/tools/linter-rules/unnecessary_ignore) | Not specified |
 | [`unnecessary_null_aware_operator_on_extension_on_nullable`](https://dart.dev/tools/linter-rules/unnecessary_null_aware_operator_on_extension_on_nullable) | Not specified |
+| [`unnecessary_unawaited`](https://dart.dev/tools/linter-rules/unnecessary_unawaited) | Not specified |
 | [`unreachable_from_main`](https://dart.dev/tools/linter-rules/unreachable_from_main) | Not specified |
 | [`unsafe_variance`](https://dart.dev/tools/linter-rules/unsafe_variance) | Not specified |
 | [`use_decorated_box`](https://dart.dev/tools/linter-rules/use_decorated_box) | [Has unresolved malfunctions](https://github.com/dart-lang/linter/issues/3286) |