Added a note about Playwright in the README

It is not obvious that the RFBrowser library provides support for Playwright, this is now explicitly mentioned.

Author: ppodgorsek

README.md

@@ -33,9 +33,9 @@
 
 ## What is it?
 
-This project consists of a Docker image containing a Robot Framework installation.
+This project consists of a container image containing a Robot Framework installation.
 
-This installation also contains Firefox, Chrome, Microsoft Edge and the Selenium library for Robot Framework. The test cases and reports should be mounted as volumes.
+This installation also contains Firefox, Chrome, Microsoft Edge, along with the Selenium and Playwright/RFBrowser library for Robot Framework.
 
 <a name="versioning"></a>
 
@@ -49,7 +49,7 @@ The versioning of this image follows the one of Robot Framework:
 The versions used are:
 
 * [Robot Framework](https://github.com/robotframework/robotframework) 7.0
-* [Robot Framework Browser Library](https://github.com/MarketSquare/robotframework-browser) 18.0.0
+* [Robot Framework Browser (Playwright) Library](https://github.com/MarketSquare/robotframework-browser) 18.0.0
 * [Robot Framework DatabaseLibrary](https://github.com/franz-see/Robotframework-Database-Library) 1.4.3
 * [Robot Framework Datadriver](https://github.com/Snooz82/robotframework-datadriver) 1.10.0
 * [Robot Framework DateTimeTZ](https://github.com/testautomation/DateTimeTZ) 1.0.6