1.3.4 - Support Synchronization with Upstream Repo & Fix Argument Mismatch for PR Comment Creation

Feature

• Fork repository sync APIs: added repos.sync_repo (PUT) and repos.check_sync_repo (GET) with RepositorySyncResult, allowing user to sync forked repo with the upstream source and check the sync progress.

Fix

• Pull request comment creation payload: pulls.create_comment now sends position_type ("text" or "binary", default "text") and no longer accepts or forwards the unsupported commit_id argument.

Docs

• Documented fork sync endpoints in the Repository REST reference, including progress-check semantics and the official API caveat.
• README badge caching: Shields.io badges now use a 12-hour cache query to reduce upstream rate-limit failures.
• Wording: README / docs “sub-package” corrected to “sub-module”.

Full Changelog: 1.3.3...1.3.4