fix: update docs with more info

Author: satya164

packages/create-react-native-library/templates/common/CONTRIBUTING.md

@@ -10,7 +10,9 @@ To get started with the project, run `yarn` in the root directory to install the
 yarn
 ```
 
-While developing, you can run the [example app](/example/) to test your changes.
+> While it's possible to use [`npm`](https://github.com/npm/cli), the tooling is built around [`yarn`](https://classic.yarnpkg.com/), so you'll have an easier time if you use `yarn` for development.
+
+While developing, you can run the [example app](/example/) to test your changes. Any changes you make in your library's JavaScript code will be reflected in the example app without a rebuild. If you change any native code, then you'll need to rebuild the example app.
 
 To start the packager:
 
@@ -80,6 +82,16 @@ We use [TypeScript](https://www.typescriptlang.org/) for type checking, [ESLint]
 
 Our pre-commit hooks verify that the linter and tests pass when committing.
 
+### Publishing to npm
+
+We use [release-it](https://github.com/release-it/release-it) to make it easier to publish new versions. It handles common tasks like bumping version based on semver, creating tags and releases etc.
+
+To publish new versions, run the following:
+
+```sh
+yarn release
+```
+
 ### Scripts
 
 The `package.json` file contains various scripts for common tasks: