Update README.md

Author: jph6366

Docker/README.md

@@ -137,7 +137,7 @@ Run the tool in interactive mode. This launches a terminal-based wizard where yo
 
 [Note that NIfTI and DICOM encode space differently](https://www.nitrc.org/plugins/mwiki/index.php/dcm2nii:MainPage#Spatial_Coordinates)
 
-![image](https://github.com/user-attachments/assets/8ea21692-36ac-4773-aec7-6cb3a6838055)
+![image](https://www.nitrc.org/plugins/mwiki/images/thumb/8/8e/Dcm2nii%3AMni_v_dicom.jpg/300px-Dcm2nii%3AMni_v_dicom.jpg)
 
 ##### The goal of dcm2niix is to create FSL format bvec/bval files for processing. A crucial concern is ensuring that the gradient directions are reported in the frame of reference expected by the software you use to fit your tractography. [dicom2niix should generate a ".bvec" file that reports the tensors as expected](https://www.nitrc.org/plugins/mwiki/index.php/dcm2nii:MainPage#Diffusion_Tensor_Imaging) by FSL's dtifit, where vectors are reported relative to image frame of reference (rather than relative to the scanner bore)