Fixes typos on FreeSurfer requirements for ss3t hsvs recon

[pcamach2]

Corrects typos in the reconstruction page of the docs. Freesurfer requirement for ss3t with hybrid surface-volume segmentation corrected to "Yes", for msmt without ACT corrected to "No".

Changes proposed in this pull request

Fixes Freesurfer requirements for recon workflows in documentation.

Documentation that should be reviewed

Corrects the Freesurfer requirements for ss3t with hsvs ACT (set to previously to "No") and for msmt without ACT (set previously to "Yes")