为什么 我的文本在Github上显示成这样的了

{\rtf1\ansi\ansicpg936\cocoartf1343\cocoasubrtf140

{\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fnil\fcharset134 STHeitiSC-Light;}

{\colortbl;\red255\green255\blue255;}

\paperw11900\paperh16840\margl1440\margr1440\vieww10800\viewh8400\viewkind0

\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural

\f0\fs24 \cf0 git is

\f1 a distributed control system.\

git is free software.}