Add playwright note and selenium legacy branch

Author: digitronik

.github/workflows/tests.yaml

@@ -88,7 +88,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -U pip wheel
-          pip install .[dev]
+          pip install -e .[dev]
 
       - name: Test with pytest (with coverage)
         if: matrix.run-coverage == true

README.md

@@ -26,6 +26,8 @@ iteration of [widgetastic.patternfly4](https://github.com/RedHatQE/widgetastic.p
 Built on top of [widgetastic.core](https://github.com/RedHatQE/widgetastic.core) with **Playwright** as the browser
 automation engine, this library provides a robust and modern approach to UI testing for PatternFly components.
 
+> **Note**: The `main` branch now uses **Playwright** for browser automation. For the legacy Selenium implementation, please refer to the [legacy-selenium-support](https://github.com/RedHatQE/widgetastic.patternfly5/tree/legacy-selenium-support) branch.
+
 ## Installation
 
 ```bash