Fixing a wrong $ sign

Dependencies

• [2] ONXLUQLI Add install instructions for arch
• [3] SCSV2FNS Reboot
• [4] OSJ2HIDP Version 1.0.0-alpha.10

Change contents

• replacement in src/installing.md at line 45
  [2.238]→[2.238:308](∅→∅)
  − You might need to add the install directory to your $PATH environment
  [2.238]

  [2.308]
  + You might need to add the install directory to your \$PATH environment
• replacement in src/installing.md at line 50
  [2.388]→[2.388:426](∅→∅)
  − export PATH="$PATH:$HOME/.cargo/bin/"
  [2.388]

  [3.308249]
  + export PATH="\$PATH:$HOME/.cargo/bin/"