Correct typo

Author: ocommowi

docs/source/ms_scripts.rst

@@ -8,7 +8,7 @@ MSSEG 2016 prerpocessing script
 
 This script (**animaMSExamPreparationMSSEG2016.py**) combines several processing steps to preprocess a single time point containing T1, T2/PD, FLAIR and Gd T1 images using the same script that was used in the MSSEG 2016 challenge [1]. It relies on a precomputed brain mask that may be obtained from `volBrain <https://www.volbrain.upv.es>`_ (as for the challenge) or :doc:`the brain extraction scripts of Anima <segmentation_scripts>`. The script performs denoising, bias correctino, brain masking and registration to the FLAIR image as explained in [1].
 
-MSSEG-2 longitudinal prerpocessing script
+MSSEG-2 longitudinal preprocessing script
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 This second script comes from the `second challenge <https://portal.fli-iam.irisa.fr/msseg-2/>`_ on new MS lesions segmentation that took place at MICCAI 2021. It is named **animaMSLongitudinalPreprocessing.py** and takes as an input an organized folder with FLAIR images at two time points (already rigidly registered) and, if available, of some ground truths. It then performs basic preprocessing using Anima tools, on the two images. This script was provided to the challengers at the MSSEG-2 challenge to help them participate. The following steps are performed: