Execute script install-third-party.sh error

[foesa-yang]

[root@yao nebula-common]# ./third-party/install-third-party.sh
In file included from /opt/vesoft/toolset/gcc/7.5.0/include/c++/7.5.0/x86_64-vesoft-linux/bits/c++config.h:533:0,
                 from /opt/vesoft/toolset/gcc/7.5.0/include/c++/7.5.0/string:38,
                 from <stdin>:1:
/opt/vesoft/toolset/gcc/7.5.0/include/c++/7.5.0/x86_64-vesoft-linux/bits/os_defines.h:39:10: fatal error: features.h: No such file or directory
 #include <features.h>
          ^~~~~~~~~~~~
compilation terminated.
Downloading vesoft-third-party-2.0-x86_64-libc-2.17-gcc-7.5.0-abi-.sh...
--2021-08-23 10:35:58--  https://oss-cdn.nebula-graph.com.cn/third-party/2.0/vesoft-third-party-2.0-x86_64-libc-2.17-gcc-7.5.0-abi-.sh
正在解析主机 oss-cdn.nebula-graph.com.cn (oss-cdn.nebula-graph.com.cn)... 58.49.193.225
正在连接 oss-cdn.nebula-graph.com.cn (oss-cdn.nebula-graph.com.cn)|58.49.193.225|:443... 已连接。
已发出 HTTP 请求，正在等待回应... 404 Not Found
2021-08-23 10:35:59 错误 404：Not Found。

Downloading vesoft-third-party-2.0-x86_64-libc-2.17-gcc-7.5.0-abi-.sh failed

[Sophie-Xie]

pls fix it in doc.

[foesa-yang]

The problem has been fixed.