Add FreeBSD install option
Dependencies
- [2]
YCKFZ6NWAdd instructions for installing on Void - [*]
SCSV2FNSReboot - [*]
LLS53CR2Add installation instructions for openSUSE Tumbleweed
Change contents
- edit in src/installing.md at line 48[2.120][5.133]
```**On FreeBSD:** - edit in src/installing.md at line 53[5.137][5.137]
pkg install pijul```