Small updates, one removal

[efojs]

• Updated /locations link for CANCOM
• Removed Fireball Labs as site tells that they are in liquidation
• Removed broken link on Implisense
• Updated SeatGeek region

Contributing Guidelines Checklist

This is a modified version of, and should adhere to, the Contributing Guidelines.

General Requirements

• This PR contains housekeeping only (URL edits, copy changes etc) - if this is checked, delete other lines that don't apply

For Company Additions/Updates

• You know your alphabet - company is listed in alphabetical order in the README.md file
• An entry has been added or edited within the README.md file
• Region details the geographic regions in which this company's employees can reside
• How to apply details the best approach for new applications, page on site where open positions are listed, and any other help available for job hunters
  • deleted broken link

Additional Information

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[efojs]

Is it me or the new pipeline?

[dougaitken]

New pipeline @efojs - I need to redo it all, again. Likely the next week or so I'm going to redo everything but I'll include your fixes here as they are valid.