update readme format

huangmingming

2023-01-29 d4ad19319e5e7fce9796722d631a6144b95aaa2b

1
2
3
4
5
6
7
8
9
10
M    million
MLN    million
m    million
mln    million
B    billion
b    billion
BN    billion
bn    billion
K    thousand
k    thousand