docs: update readme

Author: zhufuyi

assets/install-cn.md

@@ -89,7 +89,7 @@ go env GOBIN  # 验证是否配置成功，如果输出不为空，说明设置
 #### 安装步骤
 
 1. 安装 protoc：
-    - 下载地址：[protoc v25.2](https://github.com/protocolbuffers/protobuf/releases/tag/v25.2)
+    - 下载地址：[protoc v31.1](https://github.com/protocolbuffers/protobuf/releases/tag/v31.1)
     - 将 `protoc` 可执行文件放入 `GOBIN` 目录
 
 2. 安装 sponge：

assets/install-en.md

@@ -83,7 +83,7 @@ go env GOBIN  # Verify configuration success, non-empty output indicates success
 #### Installation Steps
 
 1. Install protoc:
-    - Download link: [protoc v25.2](https://github.com/protocolbuffers/protobuf/releases/tag/v25.2)
+    - Download link: [protoc v31.1](https://github.com/protocolbuffers/protobuf/releases/tag/v31.1)
     - Place the `protoc` executable file into the `GOBIN` directory
 
 2. Install sponge:

pkg/sasynq/README.md

@@ -3,7 +3,7 @@
 `sasynq` is a wrapper around the excellent [asynq](https://github.com/hibiken/asynq) library. It provides a simpler and more user-friendly SDK while remaining fully compatible with native asynq usage patterns. Its main features include:
 
 - Support for Redis Cluster and Sentinel for high availability and horizontal scalability.
-- Distributed task queues with support for priority queues, delayed queues, unique tasks (to prevent duplicate execution), and periodic task scheduling.
+- Distributed task queues with support for priority queues, delayed queues, unique tasks (to prevent duplicate execution), cancel task, and periodic task scheduling.
 - Built-in mechanisms for task retries (with customizable retry counts), timeouts, and deadlines.
 - Flexible scheduling for immediate, delayed, or specific-time execution.
 - Unified logging using zap.