docs: remove minimal environment variables section from README

Author: Hsiang Han

README.md

@@ -39,7 +39,6 @@ Migrated to `hexgrad/Kokoro-82M-v1.1-zh` with baseline adaptation based on the c
 - [一条命令启动（预构建镜像） / One-command Start](#一条命令启动预构建镜像--one-command-start-prebuilt-image)
 - [源码部署 / Source Deployment](#源码部署--source-deployment)
 - [Unraid Docker Compose 部署 / Unraid Docker Compose Deployment](#unraid-docker-compose-部署--unraid-docker-compose-deployment)
-- [镜像标签策略 / Image Tagging Strategy](#镜像标签策略--image-tagging-strategy)
 - [最小环境变量 / Minimal Environment Variables](#最小环境变量--minimal-environment-variables)
 - [切换到 v1.0（英文模型） / Switch to v1.0](#切换到-v10英文模型--switch-to-v10)
 
@@ -400,22 +399,6 @@ chmod -R 775 /mnt/user/appdata/kokoro-fastapi-zh
 
 > **Tip**: Unraid terminal is root by default, so these commands can be executed directly and only once before first deployment.
 
-## 镜像标签策略 / Image Tagging Strategy
-
-- 推荐生产环境固定版本标签（例如：`v0.2.4-zh`），避免 `latest` 漂移。
-- 建议约定：
-- GPU：`ghcr.io/hsiang-han/kokoro-fastapi-zh-gpu:v0.2.4-zh`
-- CPU：`ghcr.io/hsiang-han/kokoro-fastapi-zh-cpu:v0.2.4-zh`
-- `latest` 可用于快速试用，不建议用于可复现部署。
-
-English:
-
-- In production, pin fixed tags (for example `v0.2.4-zh`) to avoid `latest` drift.
-- Suggested convention:
-- GPU: `ghcr.io/hsiang-han/kokoro-fastapi-zh-gpu:v0.2.4-zh`
-- CPU: `ghcr.io/hsiang-han/kokoro-fastapi-zh-cpu:v0.2.4-zh`
-- `latest` is fine for quick trials, but not recommended for reproducible deployment.
-
 ## 最小环境变量 / Minimal Environment Variables
 
 | 变量 / Variable | 示例值 / Example | 说明 / Description |