Fixed typo and punctuation in readme
updated eslint to 9.1 & did appropriate changes in sources
Merge pull request #68 from bcbcb/dev

Fixed typo and punctuation in readme
Demo: use HTTPS for external resources to avoid mixed content issues
Readme: clarified extensions info & updated demo link to SSL
edits to readme. fixes typos in code comments.
Added debug view to demo
browser files update
1.2.1 released