The ornamental design for a layoutmarkingtemplate, as shown and described.
FIG. 1 is a top perspective view for a layout marking template showing my new design;
FIG. 2 is a top side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a bottom side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a front side view thereof
FIG. 7 is a rear side view thereof; and,
FIG. 8 is a bottom perspective view.
The claimed design is shown broken away to indicate that no particular length of the layout marking template forms a part of the claimed design.
The claimed design is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.