Types-of-codes.md

@@ -22,7 +22,7 @@ where
 ```math
 k_z = 0, \pm 1 \frac{2\pi}{L_z}, \pm 2 \frac{2\pi}{L_z}, \ldots , +(N_z-1) \frac{2\pi}{L_z}
 ``` 
-For `NZ=1`, the code solves a 2D problem (there is only one mode in z-directions, which reduces to 1). Note, however, that the 2D problem requires a different prescription for coupling constant regularization than the one implemented in the W-SLDA toolkit. 
+For `NZ=1`, the code solves a 2D problem (there is only one mode in the z-direction, which reduces to 1). Note, however, that the 2D problem requires a different prescription for coupling constant regularization than the one implemented in the W-SLDA toolkit. 
 
 
 ## 1D codes: `xx-wslda-1d`