Document running as root with sudo

Author: devm33

README.md

@@ -73,6 +73,8 @@ Or
 wget -qO- https://gh.io/copilot-install | bash
 ```
 
+Use `| sudo bash` to run as root and install to `/usr/local/bin`.
+
 Set `PREFIX` to install to `$PREFIX/bin/` directory. Defaults to `/usr/local`
 when run as root or `$HOME/.local` when run as a non-root user.
 

install.sh

@@ -4,6 +4,7 @@ set -e
 # GitHub Copilot CLI Installation Script
 # Usage: curl -fsSL https://gh.io/copilot-install | bash
 #    or: wget -qO- https://gh.io/copilot-install | bash
+# Use | sudo bash to run as root and install to /usr/local/bin
 # Export PREFIX to install to $PREFIX/bin/ directory (default: /usr/local for
 # root, $HOME/.local for non-root), e.g., export PREFIX=$HOME/custom to install
 # to $HOME/custom/bin