Add instructions for installing on Void

Dependencies

• [2] LLS53CR2 Add installation instructions for openSUSE Tumbleweed
• [*] SCSV2FNS Reboot

Change contents

• edit in src/installing.md at line 42
  [2.133]

  [2.133]
  + ```

  +

  + **On Void (Linux):**

  +

  + ```

  + sudo xbps-install libgcc-devel libressl-devel libsodium-devel libzstd-devel xxHash-devel
• edit in src/installing.md at line 113
  [2.837]

  [2.837]
  +

  + ### Void (Linux)

  +

  + ```

  + xbps-install pijul

  + ```