The old domain automatically forwards to the new one. For consistency, change
all doc and code references regardless.
Also adds GitHub CNAME config file which configures our page for the custom
domain.
PiperOrigin-RevId: 243592110
- Change 'compile' configuration (deprecared) to using 'implementation'
and 'api' configurations instead.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187311778