FIX: FSLPrepareFieldmap -> PrepareFieldmap in docs

Author: ghisvail

README.md

@@ -33,7 +33,7 @@ for FMRI, MRI and DTI brain imaging data.
 | fast     | FAST                                                                                                               |
 | flirt    | FLIRT, ApplyXFM, ConcatXFM, ConvertXFM, InvertXFM, FixScaleSkew, Img2ImgCoord, Img2StdCoord, Std2ImgCoord          |
 | fnirt    | FNIRT, FNIRTFileUtils, ApplyWarp, ConvertWarp, InvWarp                                                             |
-| fugue    | FUGUE, FSLPrepareFieldmap, Prelude, SigLoss                                                                        |
+| fugue    | FUGUE, PrepareFieldmap, Prelude, SigLoss                                                                           |
 | fslmaths | (**experimental**) FSLMaths, Mul                                                                                   |
 | susan    | SUSAN                                                                                                              |
 | utils    | ChFileType, FFT, Info, Interleave, Merge, Orient, Reorient2Std, ROI, SelectVols, Slice, SmoothFill, Split, SwapDim |