Amphtml: Update license files with better spelling of cat

[honeybadgerdontcare]

See https://github.com/search?q=org%3Aampproject+communiampion&type=Code

[ithinkihaveacat]

I guess this came from https://github.com/google/github-owners-bot/blob/master/LICENSE?

/cc @erwinmombay

[kristoferbaxter]

@kristoferbaxter is addressing

• [x] https://github.com/ampproject/amp-publisher-sample/blob/6497c60e593a7aa16700badaf3e2e237778d01c8/LICENSE
• [x] https://github.com/ampproject/ampstart/blob/700a05a198899a6be7f69269eab912a5ae359aa0/LICENSE
• [x] https://github.com/ampproject/design-docs/blob/22fe45c5af2781177470be95ec6eea97d9f47c36/LICENSE
• [x] https://github.com/ampproject/amp-viewer/blob/e89289df704b5cb90cda18800ebedcdf1f865641/LICENSE
• [x] https://github.com/ampproject/amp-by-example/blob/3f774161d3764f2c6fe4ea4cda97cd0f96e2afd4/LICENSE
• [x] https://github.com/ampproject/amphtml/blob/75151065723b11e7dee23a4b4de210fc819fd4ba/extensions/amp-viewer-integration/0.1/messaging/LICENSE
• [x] https://github.com/ampproject/amphtml/blob/9ecdaaa7aea9932b42d18860906cffe936b2019a/examples/visual-tests/amp-by-example/LICENSE.txt
• [x] https://github.com/ampproject/amphtml/blob/6d9c43636558993fb1c80fda2f171f8a9c6071fe/third_party/subscriptions-project/LICENSE
• [x] https://github.com/ampproject/amphtml/blob/e23b675dda9ad285b394a982b12dc2d02d578342/extensions/amp-access/0.1/iframe-api/LICENSE
• [x] https://github.com/ampproject/amp-platform-samples/blob/b1cb445208c23a1542e10b43468eb70b00a15303/LICENSE
• [x] https://github.com/ampproject/error-tracker/blob/0cd89972303ad735ceaba9d7f189a95ac758db90/LICENSE

@jeffjose is addressing

• [x] https://github.com/ampproject/ampbench/blob/2c4296c34432e6a4eab3709291e228baf3cf7c09/readiness-tool/options.html

[rsimha]

This was originally tracked by #48, and partially fixed by #49.

[ampprojectbot]

This issue hasn't been updated in awhile. @kristoferbaxter Do you have any updates?

[CrystalOnScript]

@kristoferbaxter I see a lot of checked boxes! Can this issue be closed?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

[honeybadgerdontcare]

Fixed with:
https://github.com/ampproject/animations/pull/58
https://github.com/ampproject/worker-dom/pull/1018
https://github.com/ampproject/filesize/pull/124
https://github.com/ampproject/amp-viewer/pull/150
https://github.com/ampproject/amp-sw/pull/71

[honeybadgerdontcare]

Reopening till PRs are merged (I do not have merge access to all those repos, hopefully Kris does)