BUG: MutualInformation outputBaseline.png -> OutputBaseline.png

To address:

  ITKExamples-build/src/Core/Transform/MutualInformationAffine/Documentation.rst:33: WARNING: image file not readable: src/Core/Transform/MutualInformationAffine/OutputBaseline.png

Author: thewtex

src/Core/Transform/MutualInformationAffine/Documentation.rst

@@ -18,19 +18,19 @@ Results
   :scale: 70%
   :alt: fixed.png
 
-  fixed.png
+fixed.png
 
 .. figure:: moving.png
   :scale: 70%
   :alt: moving.png
 
-  moving.png
+moving.png
 
 .. figure:: OutputBaseline.png
   :scale: 70%
   :alt: OutputBaseline.png
 
-  OutputBaseline.png
+OutputBaseline.png
 
 Output::