Merge pull request ampproject#1709 from ampproject/bump/version-1.0-s…

…table

Bump version to 1.0.0, update readme

Build 1.0.0

Merge pull request ampproject#1683 from Automattic/fix/embed-wrapper

Remove block editor responsive embed styling

Build 1.0-RC4

Build 1.0-RC3

Merge pull request ampproject#1640 from Automattic/fix/merge-1618-to-1.0

Merge PR ampproject#1634's commits into 1.0, not develop

Restore AMP version as 1.0-RC2

Build 1.0-RC2

Build 1.0-RC1

Merge pull request ampproject#1482 from Automattic/release/1.0-rc1

1.0-RC1 Release