DOC: Add commands in a `Review` section to the ITK Git cheat sheet.
DOC: Add commands in a `Review` section to the ITK Git cheat sheet.

Add custom ITK commands in a `Review` section to the ITK Git cheat
sheet.

Change-Id: I0c9956d35517cb911ffad982e3832a5357a2914e

BRAINSia/ITK,blowekamp/ITK,LucasGandel/ITK,hjmjohnson/ITK,malaterre/ITK,vfonov/ITK,vfonov/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,blowekamp/ITK,blowekamp/ITK,BRAINSia/ITK,thewtex/ITK,stnava/ITK,spinicist/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,stnava/ITK,stnava/ITK,Kitware/ITK,stnava/ITK,LucasGandel/ITK,stnava/ITK,fbudin69500/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,thewtex/ITK,hjmjohnson/ITK,thewtex/ITK,spinicist/ITK,fbudin69500/ITK,malaterre/ITK,vfonov/ITK,spinicist/ITK,BRAINSia/ITK,vfonov/ITK,malaterre/ITK,hjmjohnson/ITK,BRAINSia/ITK,richardbeare/ITK,malaterre/ITK,hjmjohnson/ITK,spinicist/ITK,stnava/ITK,BRAINSia/ITK,richardbeare/ITK,richardbeare/ITK,thewtex/ITK,malaterre/ITK,Kitware/ITK,richardbeare/ITK,spinicist/ITK,Kitware/ITK,thewtex/ITK,blowekamp/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,fbudin69500/ITK,richardbeare/ITK,spinicist/ITK,blowekamp/ITK,richardbeare/ITK,Kitware/ITK,fbudin69500/ITK,malaterre/ITK,blowekamp/ITK,stnava/ITK,spinicist/ITK,LucasGandel/ITK,fbudin69500/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,spinicist/ITK,malaterre/ITK,Kitware/ITK,malaterre/ITK,Kitware/ITK,hjmjohnson/ITK,LucasGandel/ITK,thewtex/ITK,stnava/ITK,stnava/ITK,vfonov/ITK,LucasGandel/ITK,fbudin69500/ITK,spinicist/ITK,LucasGandel/ITK,vfonov/ITK,malaterre/ITK,BRAINSia/ITK,hjmjohnson/ITK,hjmjohnson/ITK,LucasGandel/ITK,LucasGandel/ITK,Kitware/ITK,BRAINSia/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK