docs: move Agent Skill section above the fold

- Add Codex and 35+ agents link
- Standardize wording across all CLI repos

Author: dedene

README.md

@@ -6,6 +6,14 @@ A command-line interface for the [StrawPoll](https://strawpoll.com/) API v3 - cr
 [![Go Report Card](https://goreportcard.com/badge/github.com/dedene/strawpoll-cli)](https://goreportcard.com/report/github.com/dedene/strawpoll-cli)
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)
 
+## Agent Skill
+
+This CLI is available as an [open agent skill](https://skills.sh/) for AI assistants including [Claude Code](https://claude.ai/code), [OpenClaw](https://openclaw.ai/), [Codex](https://github.com/openai/codex), Cursor, GitHub Copilot, and [35+ agents](https://github.com/vercel-labs/skills#supported-agents).
+
+```bash
+npx skills add dedene/strawpoll-cli
+```
+
 ## Features
 
 - **Create polls** - Multiple-choice polls with 20+ configuration options
@@ -141,14 +149,6 @@ strawpoll completion zsh > "${fpath[1]}/_strawpoll"
 strawpoll completion fish > ~/.config/fish/completions/strawpoll.fish
 ```
 
-## Agent Skill
-
-This CLI is available as an [open agent skill](https://skills.sh/) for AI assistants including [Claude Code](https://claude.ai/code), [OpenClaw](https://openclaw.ai/), Cursor, and GitHub Copilot:
-
-```bash
-npx skills add dedene/strawpoll-cli
-```
-
 ## Environment variables
 
 | Variable | Description |