diff --git a/README.md b/README.md
index 7b5aa2d..f4ed1db 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Parameter | Range | Description
`gridy` | {n>0\|n∈Z} | number of bases along the y-axis
`length` | {n>0\|n∈R} | size of the square bases in millimeters, default 42
`gridz` | {n>0\|n∈R} | height value (can be interpreted in various ways)
-`gridz_define` | {0,1,2} | • Unit height (0): `gridz` is the height in units (7mm increments). The stock bins have a unit height value of 2, 3, or 6. The overall height of the bin is `7*u + 3.8` millimeters, where the 3.8 is the height of the top lip.
• Internal height (1): `gridz` is the height from the bottom of a compartment to the top of the tab in millimeters. This is effectively the maximum height of an object that can fit inside the bin.
• External height (2): `gridz` is the overall height of the bin, from the base to the upper lip fillet. This is effectively how deep a drawer must be to fit the bin.
+`gridz_define` | {0,1,2} | • (0) Unit height: `gridz` is the height in units (7mm increments). The stock bins have a unit height value of 2, 3, or 6. The overall height of the bin is `7*u + 3.8` millimeters, where the 3.8 is the height of the top lip.
• (1) Internal height: `gridz` is the height from the bottom of a compartment to the top of the tab in millimeters. This is effectively the maximum height of an object that can fit inside the bin.
• (2) External height: `gridz` is the overall height of the bin, from the base to the upper lip fillet. This is effectively how deep a drawer must be to fit the bin.
`enable_holes` | boolean | toggle holes for magnets and M3 screws on the base of the bin
`enable_hole_slit` | boolean | toggle the printable countersunk hole cut
`enable_zsnap` | boolean | have the bin increase in height until it matches the nearest 7mm increment. Useful if a bin needs to be a minimum internal size to fit a part (i.e. `gridz_define == 1`) but you still want the bin to fit within the sizing standards of the gridfinity system