Minor clean ups to the Compatibility page.
Minor clean ups to the Compatibility page.

shengfuintel/OpenSubdiv,lookup1980/OpenSubdiv,lookup1980/OpenSubdiv,c64kernal/OpenSubdiv,xldeveloper/OpenSubdiv,anshuarya/OpenSubdiv,nyotis/OpenSubdiv,lookup1980/OpenSubdiv,takahito-tejima/OpenSubdiv,anshuarya/OpenSubdiv,nyotis/OpenSubdiv,takahito-tejima/OpenSubdiv,anshuarya/OpenSubdiv,c64kernal/OpenSubdiv,xldeveloper/OpenSubdiv,xldeveloper/OpenSubdiv,shengfuintel/OpenSubdiv,nyotis/OpenSubdiv,c64kernal/OpenSubdiv,shengfuintel/OpenSubdiv,takahito-tejima/OpenSubdiv