docs: prioritize uvx usage in Quick Start section

Move uvx/pipx instructions to the top of Quick Start as the recommended
approach for its simplicity - no installation required.

Author: AndersonBY

README.md

@@ -22,22 +22,45 @@ The original [Repomix](https://github.com/yamadashy/repomix) is written in JavaS
 
 ## 🚀 3. Quick Start
 
-You can install Repomix using pip:
+### Quick Run with uvx (Recommended)
+
+The easiest way to use Repomix is with [uvx](https://docs.astral.sh/uv/) - no installation required:
 
 ```bash
-pip install repomix
+uvx repomix
 ```
 
-Then run in any project directory (using the installed script is preferred):
+That's it! This will pack your current directory into an AI-friendly file.
 
+**More examples:**
 ```bash
-repomix
+# Pack with JSON output
+uvx repomix --style json
+
+# Pack a remote repository
+uvx repomix --remote https://github.com/username/repo
+
+# Pack with specific patterns
+uvx repomix --include "src/**/*.py" --ignore "tests/**"
+
+# Use a specific version
+uvx repomix@0.4.1
+```
+
+You can also use [pipx](https://pipx.pypa.io/): `pipx run repomix`
+
+### Install with pip
+
+For frequent usage, you can install Repomix globally:
+
+```bash
+pip install repomix
 ```
 
-Alternatively, you can use:
+Then run in any project directory:
 
 ```bash
-python -m repomix
+repomix
 ```
 
 ### Docker Usage

README_zh.md

@@ -23,22 +23,45 @@ Repomix 是一个强大的工具，可以将你的整个仓库打包成一个单
 
 ## 🚀 3. 快速开始
 
-你可以使用 pip 安装 Repomix：
+### 使用 uvx 快速运行（推荐）
+
+使用 Repomix 最简单的方式是通过 [uvx](https://docs.astral.sh/uv/) - 无需安装：
 
 ```bash
-pip install repomix
+uvx repomix
 ```
 
-然后在任何项目目录下运行：
+就这么简单！这将把你当前目录打包成一个 AI 友好的文件。
 
+**更多示例：**
 ```bash
-repomix
+# 使用 JSON 输出打包
+uvx repomix --style json
+
+# 打包远程仓库
+uvx repomix --remote https://github.com/username/repo
+
+# 使用特定模式打包
+uvx repomix --include "src/**/*.py" --ignore "tests/**"
+
+# 使用特定版本
+uvx repomix@0.4.1
+```
+
+你也可以使用 [pipx](https://pipx.pypa.io/)：`pipx run repomix`
+
+### 使用 pip 安装
+
+如果需要频繁使用，可以全局安装 Repomix：
+
+```bash
+pip install repomix
 ```
 
-或者，你也可以使用:
+然后在任何项目目录下运行：
 
 ```bash
-python -m repomix
+repomix
 ```
 
 ### Docker 使用