Change time installation steps (#91)

Author: MasloMaslane

README.md

@@ -43,7 +43,8 @@ As `oiejq` works only on Linux-based operating systems,
 Nevertheless `sinol-make` supports those operating systems,
 though there are additional installation steps required to use
 other tools for measuring time (which are non-deterministic and produce reports different from sio2):
-- Windows (WSL): `apt install time`
+- Debian-based systems (Ubuntu, usually Windows WSL): `apt install time`
+- Arch-based systems: `pacman -S time`
 - macOS: `brew install gnu-time coreutils`
 
 ### Autocompletion (optional)