Add README, update default port number

Author: overflowy

README.md

@@ -0,0 +1,40 @@
+# Bash Script Tools
+
+A web-based bash script formatter and linter with AI-powered autofix.
+
+## Features
+
+- **Format**: Format bash scripts using `shfmt`
+- **Lint**: Check scripts with `shellcheck`
+- **Autofix**: Apply shellcheck's automatic fixes
+- **Autofix (AI)**: Fix shellcheck issues using AI (Groq)
+
+## Requirements
+
+- Go 1.16+
+- `shfmt` - [github.com/mvdan/sh](https://github.com/mvdan/sh)
+- `shellcheck` - [github.com/koalaman/shellcheck](https://github.com/koalaman/shellcheck)
+
+## Usage
+
+```bash
+# Basic usage
+./bash-script-tools
+
+# With AI autofix (optional)
+export GROQ_API_KEY="your-api-key"
+./bash-script-tools
+
+# Custom configuration
+export PORT=8085
+export GROQ_MODEL_ID="openai/gpt-oss-120b"
+export SHFMT_PATH="/custom/path/to/shfmt"
+export SHELLCHECK_PATH="/custom/path/to/shellcheck"
+./bash-script-tools
+```
+
+Open http://localhost:8085 in your browser.
+
+## License
+
+MIT

main.go

@@ -60,7 +60,7 @@ func main() {
 	http.HandleFunc("/autofix", handleAutofix)
 	http.HandleFunc("/autofix-ai", handleAutofixAI)
 
-	port := getEnvOrDefault("PORT", "8080")
+	port := getEnvOrDefault("PORT", "8085")
 	log.Printf("Server starting on http://localhost:%s", port)
 	log.Printf("Using shfmt: %s", shfmtPath)
 	log.Printf("Using shellcheck: %s", shellcheckPath)