Update UpdateEdits.md

# Alex

- Accepted Feedback:

    - Removed stack traces from error messages for the scrawler

    - Added displaying number of pages crawled thus far regardless of --stats argument

    - Blacklisted assets.tumblr.com

    - Added to INSTALL.md:

        - Added some common websites to try crawling

        - Added some instructions for seed URLs

- Rejected Feedback:

    - n/a

- Other Changes:

    - Emphasized the reduced amount of URLs available when running without --xl

    - Crawler now fetches a new URL without incrementing the crawl count if the URL contains a file extension for a image, video, audio, or PDF

# Reza