Revert "Revert "Revert "modified the index and added test 3 line to the read me file."""

This reverts commit 3f43475c8b3a251660496ea3a2cb6dfe512b9b0f.
Revert "Revert "modified the index and added test 3 line to the read me file.""

This reverts commit cb65f7a2e9c0c1866bfe8fad5d66874c88f62d27.
Revert "modified the index and added test 3 line to the read me file."

This reverts commit a47ea44d23547c0625047f35dbc03d1f249d83e1.