set dynamic linker.md

## 技巧 有人问我,如何通过选项来指定动态连接器,而不使用缺省系统自带的动态连接器。我后来查了下ld的手册,有这么一个选项: -Ifile --dynamic-linker=file Set the name of the dynamic linker. This is only meaningful when generating dynamically linked ELF executables. The default dynamic linker is normally correct; don't use this unless you know wh