support email connector v3 and bug fixes

What's Changed

• Update README.md by @GorakshanathJaykar in #3
• Fixed issue of missing mapping for 'From Display Name' and 'MaxAttempts' link
• Fixed issue related to Mapping of UsePlainTextOnly link
• Folder structure modified by @rover886 in #10

New Contributors

• @GorakshanathJaykar made their first contribution in #3
• @Tanuka-Majumder made their first contribution in #6

Full Changelog: 1.0.0...2.0.0

1.0.0

MVP Release with version 1.0.0