* check on CentOS container * update README * update links * update CHANGELOG * refactor insertLf()
* use matrix for Docker container * update badge
* Make up for LF in last line of SSH key file * refactor insertLf() * add test for OpenSSH format * add PKCS8 format * apply to other virtual machines * update README * update CHANGELOG Co-authored-by: Tatsunori Uchino <tats.u@live.jp>
* support Docker container * move .ssh to /root * remove print step * change home directory for Docker container * print HOME * print home * print home * update dist file * update dirname * update CHANGELOG * add badge