Update srm.md
Update srm.md

adding the -os32 and -os64 flag for completion from Installing and Uninstalling SharpShell Servers (https://github.com/dwmkerr/sharpshell/blob/master/docs/installing/installing.md)
dwmkerr/sharpshell,dwmkerr/sharpshell,dwmkerr/sharpshell,dwmkerr/sharpshell