docs: add cutler and codecov to README.md (#710)

README.md

@@ -24,6 +24,7 @@ This repository is a monorepo containing the following packages:
 | [shorebird_cli](packages/shorebird_cli/README.md)                               | Command-line which allows developers to interact with various Shorebird services        |
 | [shorebird_code_push_client](packages/shorebird_code_push_client/README.md)     | Dart library which allows Dart applications to interact with the ShoreBird CodePush API |
 | [shorebird_code_push_protocol](packages/shorebird_code_push_protocol/README.md) | Dart library which contains common interfaces used by Shorebird CodePush                |
+| [cutler](packages/cutler/README.md)                                             | A tool for managing Flutter forks                                                       |
 | [discord_gcp_alerts](packages/discord_gcp_alerts/README.md)                     | Dart server which forwards GCP alerts to Discord                                        |
 | [jwt](packages/jwt/README.md)                                                   | Dart library for verifying Json Web Tokens                                              |
 | [scoped](packages/scoped/README.md)                                             | A simple dependency injection library built on Zones                                    |
@@ -79,8 +80,7 @@ The following command will generate a coverage report for the Dart packages:
 dart test --coverage=coverage && dart pub global run coverage:format_coverage --lcov --in=coverage --out=coverage/lcov.info --packages=.dart_tool/package_config.json --check-ignore
 ```
 
-We don't yet have a recommended way to view the coverage report but there are
-several extensions available in VSCode.
+Coverage reports are uploaded to [Codecov](https://app.codecov.io/gh/shorebirdtech/shorebird).
 
 ## License