Refresh README

README.md

@@ -1,6 +1,17 @@
 # s3-genindex
 
-Generate HTML directory indexes with file type icons and responsive design.
+Generate HTML directory indexes with file type icons and responsive design for local directories and S3-compatible storage.
+This is particularly useful for S3 buckets that are publicly readable.
+
+## Features
+
+- **Local directory indexing** with recursive traversal
+- **S3-compatible storage support** (MinIO, AWS S3, etc.)
+- **Hierarchical directory structure** for S3 buckets
+- **Responsive HTML design** with file type icons
+- **Dry run mode** for testing
+- **Flexible filtering** with glob patterns and regex exclusion
+- **Hidden file control** and index.html visibility options
 
 ## Install
 
@@ -8,17 +19,20 @@ Generate HTML directory indexes with file type icons and responsive design.
 go install git.ipng.ch/ipng/s3-genindex/cmd/s3-genindex@latest
 ```
 
-## Usage
+## Quick Start
 
 ```bash
-# Generate index.html in current directory
-s3-genindex
+# Local directory
+s3-genindex -d /path/to/dir
 
-# Generate recursively with custom output
-s3-genindex -r -o listing.html /path/to/dir
+# S3 bucket (requires AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY)
+s3-genindex -s3 http://minio.example.com:9000/bucket
 
-# Exclude files by regex
-s3-genindex -x "(build|node_modules|\.tmp)"
+# Dry run to see what would be generated
+s3-genindex -d /path/to/dir -n
+
+# Show index.html files in listings
+s3-genindex -d /path/to/dir -i
 ```
 
 ## Build
@@ -28,4 +42,4 @@ make build
 make test
 ```
 
-See [docs/DETAILS.md](docs/DETAILS.md) for complete documentation.
+See [docs/DETAILS.md](docs/DETAILS.md) for complete documentation and examples.