Minor changes on subtitles for categories
Added alt tags to some images, both in html and script. Added siteName in the article object.
added an array in memory of all articles to avoid async collisions when checking for dupes
removed instant scrapeSites on execution
Merge pull request #29 from BustByte/checkDBBeforeScrape

added an array in memory of all articles to avoid async collisions when ...
Merge pull request #25 from BustByte/feature/html_validation

Html validation
Merge pull request #24 from BustByte/develop

Minor changes on subtitles for categories