Fix broken external links

[Dindihub]

The following broken links on the website's News and Press pages need to be replaced or deleted.

News page:

• January 25, 2018
  Airbiquity receives a BIG Award for Business in the 2017 New Product of the Year Award category for its Uptane-based OTAmatic over-the-air software and data management solution.

• October 10, 2016
  Lily Guo and Riyaz Faizullabhoy from Docker gave a talk on TUF and Notary at LinuxCon+ContainerCon Europe 2016. Slides of their talk are available here.

Press page :

• Notary demoed at the DockerCon 2015 keynote

• Forbes-January 2017: Uptane Will Protect your Connected Car from Hackers

• Airbiquity.com-January 2018: Airbiquity OTAmatic Named 2017 New Product Of The Year By Business Intelligence Group

• Airbiquity.com-December 13, 2018: Airbiquity Bolsters OTAmatic™ Security And Data Analytic Features In Latest Over-The-Air (OTA) Software And Data Management Offering For Automotive

• Just Auto-May 30, 2019: HERE and Uptane Team on automotive/IoT security

[chalin]

Generalizing this issue to cover all broken links. Note that

• [docsy] Add external link checking, fix links, add cache #103

adds several ignore regexs for invalid external links. We should fix the links and remove the ignore rules.