docs: change listener to dialler in webrtc example

[dozyio]

Description

Change listener to dialer in webrtc example

Change checklist

• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation if necessary (this includes comments as well)
• [ ] I have added tests that prove my fix is effective or that my feature works

[achingbrain]

Thanks for opening this - please can you run npm run doc in the root of the repo and it'll update the README.md file for this module with your changes, then commit and push the updated file.

You may need to run npm i && npm run build in the repo root first if you haven't already.

[dozyio]

Thanks for opening this - please can you run npm run doc in the root of the repo and it'll update the README.md file for this module with your changes, then commit and push the updated file.

You may need to run npm i && npm run build in the repo root first if you haven't already.

Thanks - done

[achingbrain]

Thanks!