The ornamental design for a shoerack, as shown and described.
FIG. 1 is a top, front, and right side perspective view of a shoe rack showing our new design;
FIG. 2 is a right side view thereof, the left side view being a mirror image of that shown;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a reduced top, front, and right side perspective view thereof.
The broken-line disclosure of door mounting means, door fragment, and second shoe rack are for illustrative purposes only and form no part of the claimed design.