chore(docs): add logo marker

Author: rektdeckard

README.md

@@ -1,10 +1,13 @@
 > [!WARNING]
 > This plugin is extremely experimental, and is subject to change. Use at your own risk!
 
-<img src="/meta/phosphor-mark-tight-black.png" width="96" align="right" />
 
 # @phosphor-icons/unplugin
 
+<!-- BEGIN_LOGO -->
+<img src="/meta/phosphor-mark-tight-black.png" width="96" align="right" />
+<!-- END_LOGO -->
+
 An [unplugin](https://github.com/unjs/unplugin) for transforming your Phosphor Icon imports into static SVG sprite sheets. Multiple frameworks, metaframeworks, and build tooling supported, although very much WIP. Explore all our icons at [phosphoricons.com](https://phosphoricons.com).
 
 [![NPM](https://img.shields.io/npm/v/@phosphor-icons/unplugin.svg?style=flat-square)](https://www.npmjs.com/package/@phosphor-icons/unplugin) [![Travis](https://img.shields.io/github/actions/workflow/status/phosphor-icons/unplugin/ci.yml?branch=main&style=flat-square)](https://travis-ci.com/github/phosphor-icons/unplugin) [![Travis](https://img.shields.io/github/actions/workflow/status/phosphor-icons/unplugin/release.yml?branch=main&style=flat-square&label=release)](https://travis-ci.com/github/phosphor-icons/unplugin)