feat(27255): update README.md

README.md

@@ -56,7 +56,7 @@ If you are not a MetaMask Internal Developer, or are otherwise developing on a f
   - If debugging MetaMetrics, you'll need to add a value for `SEGMENT_WRITE_KEY` [Segment write key](https://segment.com/docs/connections/find-writekey/), see [Developing on MetaMask - Segment](./development/README.md#segment).
   - If debugging unhandled exceptions, you'll need to add a value for `SENTRY_DSN` [Sentry Dsn](https://docs.sentry.io/product/sentry-basics/dsn-explainer/), see [Developing on MetaMask - Sentry](./development/README.md#sentry).
   - Optionally, replace the `PASSWORD` value with your development wallet password to avoid entering it each time you open the app.
-  - If developing with remote feature flags and you want to override the flags in the build process, you can add a `.manifest-overrides.json` file to the root of the project and set `MANIFEST_OVERRIDES=.manifest-overrides.json` in `.metamaskrc` to the path of the file. This file is used to add flags to `manifest.json` build files for the extension. You can also modify the `_flags.remoteFeatureFlags` in `manifest.json` file to tweak the flags after the build process.
+  - If developing with remote feature flags, and you want to override the flags in the build process, you can add a `.manifest-overrides.json` file to the root of the project and set `MANIFEST_OVERRIDES=.manifest-overrides.json` in `.metamaskrc` to the path of the file. This file is used to add flags to `manifest.json` build files for the extension. You can also modify the `_flags.remoteFeatureFlags` in the built version of `manifest.json` in the `dist/browser` folder to tweak the flags after the build process (these changes will get overwritten when you build again).
   ```
 - Run `yarn install` to install the dependencies.
 - Build the project to the `./dist/` folder with `yarn dist` (for Chromium-based browsers) or `yarn dist:mv2` (for Firefox)