fix: mention Java & Swift in CONTRIBUTING.md

Author: satya164

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

@@ -67,9 +67,9 @@ Remember to add tests for your change if possible. Run the unit tests by:
 yarn test
 ```
 <% if (project.native) { -%>
-To edit the Objective-C files, open `example/ios/<%- project.name -%>Example.xcworkspace` in XCode and find the source files at `Pods > Development Pods > <%- project.slug -%>`.
+To edit the Objective-C or Swift files, open `example/ios/<%- project.name -%>Example.xcworkspace` in XCode and find the source files at `Pods > Development Pods > <%- project.slug -%>`.
 
-To edit the Kotlin files, open `example/android` in Android studio and find the source files at `<%- project.identifier -%>` under `Android`.
+To edit the Java or Kotlin files, open `example/android` in Android studio and find the source files at `<%- project.identifier -%>` under `Android`.
 <% } -%>
 ### Commit message convention