support completions with brew

Author: captjt

Formula/devproc.rb

@@ -24,6 +24,9 @@ class Devproc < Formula
 
   def install
     bin.install "devproc"
+
+    # Generate and install shell completions
+    generate_completions_from_executable(bin/"devproc", "completions")
   end
 
   test do

README.md

@@ -326,7 +326,9 @@ When config is reloaded:
 
 ### Shell Completions
 
-Enable tab completion for commands and options:
+**Homebrew users**: Completions are installed automatically! Just ensure your shell is configured to load Homebrew completions.
+
+**Manual installation**: Enable tab completion for commands and options:
 
 ```bash
 # Bash (add to ~/.bashrc)