Revert "Revert "add hellothere from imac""

This reverts commit 387185be9be37dfe7a2aa7a8a1c063b4a155a098.
Revert "add test file"

This reverts commit fca45f16a95e7ff3177fd9c58ff27ac9dfd9a568.
Revert "remove file"

This reverts commit f630d4b5a3f1e1ce888ca7c5292c8f1ba0973b5b.