feat: plugin code, updates

README.md

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+# Zed ShellSpec Extension
+
+Language support for ShellSpec BDD testing framework in Zed editor.
+
+## Features
+
+- Syntax highlighting for ShellSpec DSL keywords
+- Smart indentation for nested test blocks
+- Code outline navigation
+- Bracket matching and auto-completion
+- Test execution integration
+
+## Installation
+
+1. Install via Zed's extension gallery (when published)
+2. Or manually: clone to `~/.config/zed/extensions/shellspec/`
+
+## File Types
+
+Automatically detects files with:
+- `*_spec.sh`
+- `*.spec.sh`
+
+## Usage
+
+### Test Execution
+
+Use Zed's task system to run tests:
+
+```json
+{
+  "tasks": {
+    "shellspec-test": {
+      "label": "Run ShellSpec Test",
+      "command": "shellspec",
+      "args": ["$ZED_RELATIVE_FILE"],
+      "cwd": "$ZED_WORKTREE_ROOT"
+    },
+    "shellspec-all": {
+      "label": "Run All Tests",
+      "command": "shellspec",
+      "cwd": "$ZED_WORKTREE_ROOT"
+    }
+  }
+}
+```
+
+### Language Server
+
+Uses bash-language-server for shell script features. Install with:
+
+```bash
+npm install -g bash-language-server
+```
+
+## Contributing
+
+Issues and PRs welcome at https://github.com/ivuorinen/zed-shellspec
+
+## License
+
+MIT