docs: add top-level explanation to pr-check-changelog.sh (#1337)#1362

exploreriii merged 1 commit intohiero-ledger:mainhiero-ledger/hiero-sdk-python:mainfrom

Pikolosan:docs/issue-1337-changelog-scriptPikolosan/hiero-sdk-python:docs/issue-1337-changelog-scriptCopy head branch name to clipboard