Correct marker image orientation

Author: tpoomlmly

docs/source/api/vision/orientation.rst

@@ -34,7 +34,7 @@ The following table visually explains what positive and negative rotations repre
 +----------------------------+-----------------------------+
 |        0 in all axes       |          |m0x0y0z|          |
 +--------------+-------------+---------------+-------------+
-| π/4 in rot_x | |m-45x0y0z| | -π/4 in rot_x | |m-45x0y0z| |
+| π/4 in rot_x |  |m45x0y0z| | -π/4 in rot_x | |m-45x0y0z| |
 +--------------+-------------+---------------+-------------+
 | π/4 in rot_y |  |m0x45y0z| | -π/4 in rot_y | |m0x-45y0z| |
 +--------------+-------------+---------------+-------------+