Fix typo

Fix typo on line 168

README.md

@@ -165,7 +165,7 @@ singularity exec --nv -B /home/user/my_mri_data:/data \
 * The fs_license points to your FreeSurfer license which needs to be available on your computer in the my_fs_license_dir that was mapped above. 
 * Note, that the paths following --fs_license, --t1, and --sd are inside the container, not global paths on your system, so they should point to the places where you mapped these paths above with the -B arguments. 
 * A directory with the name as specified in --sid (here subject2) will be created in the output directory. So in this example output will be written to /home/user/my_fastsurfer_analysis/subject2/ . Make sure the output directory is empty, to avoid overwriting existing files. 
-* You can run the Singularity equivalent of CPU-Docker by building a Singularity image from the CPU-Docker image and excluding the `--nv` argument in your Singularity exec comand.
+* You can run the Singularity equivalent of CPU-Docker by building a Singularity image from the CPU-Docker image and excluding the `--nv` argument in your Singularity exec command.
 
 ## System Requirements