Updated README: Equal sign not required with `--mode` flag.

[sgk-go] / regression / games / owl37.sgf

(;GM[1]FF[3]
SZ[9]
GN[1]
AW[ab][bb][cc][bd][cd][ce][af][bf][bg][cg][dg][eg]
AB[ba][ca][da][db][fb][ac][dc][gc][ad][dd][de][ee][fe][cf][df][gf][ag][ah][bh][ch][dh][eh][fh]
)