Update Readme.MD

[mfik]

PR Checklist

• [x] The PR title follows our guidelines: https://github.com/Notalib/nativescript-webview-ext/blob/master/CONTRIBUTING.md#commit-messages.

What is the current behavior?

Just a Readme update

What is the new behavior?

I dont't stop reading and miss the extra text that says i need to replace the tag :)

[m-abs]

Thank you for the PR. Merged.