diff --git a/README.md b/README.md
index 2ddfb14..e03f953 100644
--- a/README.md
+++ b/README.md
@@ -5,28 +5,57 @@ JDevKit is a Java Development Kit that offers a set of convenient tools for writ
> For more information, please visit the README file of each module.
-### `devkit-core` _[Learn more](./devkit-core/README.md)_
+### `devkit-core`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/devkit-core/README.md)_
+
The core module for `JDevKit`, by now, this module contains the commonly used classes of the whole `dev-kit`.
-### `guid` _[Learn more](./guid/README.md)_
-A module for generating globally unique IDs. It includes a facade interface and an implementation of GUID generation
-using the Snowflake algorithm. More globally unique ID generation modes will be added in the future.
+### `devkit-utils`
-### `devkit-utils` _[Learn more](./devkit-utils/README.md)_
-A collection of common utility classes to simplify Java development. It includes tools for Base64 encoding/decoding of
-strings, reducing if-else code blocks using Lambda expressions, converting between maps and arbitrary objects,
-high-precision chained mathematical calculations, and string hashing or message digest calculations.
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/devkit-utils/README.md)_
-### `simple-jwt-facade` _[Learn more](./simple-jwt-facade/README.md)_
-A facade for Simple JWT (JSON Web Token) implementations in Java. This module provides a unified interface to work with
-JWTs regardless of the underlying implementation.
+A collection of common utility classes to simplify Java development. It includes tools for Base64 encoding/decoding of strings, reducing if-else code blocks using Lambda expressions, converting between maps and arbitrary objects, high-precision chained mathematical calculations, and string hashing or message digest calculations.
+
+### `guid`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/guid/README.md)_
+
+A module for generating globally unique IDs. It includes a facade interface and an implementation of GUID generation using the Snowflake algorithm. More globally unique ID generation modes will be added in the future.
+
+### `WebCal`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/webcal/README.md)_
+
+The module `webcal` is a Java library that facilitates the generation and resolution of iCalendar content for web-based calendar applications. It provides a flexible and easy-to-use API for creating web calendars with customizable settings and events.
+
+With the `webcal` module, developers can easily integrate calendar functionality into web applications, enabling users to view, add, and manage events in a structured and standardized format. It is designed to simplify calendar-related tasks and enhance the overall user experience when dealing with calendar data on the web.
+
+Please note that the `webcal` module adheres to the iCalendar standard specified in RFC 5545, ensuring compatibility with other calendar applications that support this format.
+
+### `simple-jwt-facade`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/simple-jwt-facade/README.md)_
+
+A facade for Simple JWT (JSON Web Token) implementations in Java. This module provides a unified interface to work with JWTs regardless of the underlying implementation.
+
+### `simple-jwt-authzero`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/simple-jwt-authzero/README.md)_
-### `simple-jwt-authzero` _[Learn more](./simple-jwt-facade/README.md)_
A Simple JWT implementation using the com.auth0:java-jwt library.
-### `simple-jwt-spring-boot-starter` _[Learn more](./simple-jwt-spring-boot-starter/README.md)_
-A Spring Boot auto-configuration wrapper for the simple-jwt module, making it easier to integrate JWT functionality into
-Spring Boot applications.
+### `simple-jwt-jjwt`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/simple-jwt-jjwt/README.md)_
+
+A Simple JWT implementation using the `io.jsonwebtoken:jjwt-api` library.
+
+### `simple-jwt-spring-boot-starter`
+
+_[Learn more](https://github.com/CodeCraftersCN/jdevkit/simple-jwt-spring-boot-starter/README.md)_
+
+A Spring Boot auto-configuration wrapper for the simple-jwt module, making it easier to integrate JWT functionality into Spring Boot applications.
## Installation and Usage
If you are using `maven`, please paste the following codes to `pom.xml` in your project.
@@ -45,15 +74,15 @@ If you are using `gradle`, please paste the following codes to `buile.gradle` in
implementation 'cn.org.codecrafters:$artifactId:$version'
```
-If you want to check the available versions, please check out at our [official site]().
+If you want to check the available versions, please check out at our [official site](https://codecrafters.org.cn/devkit/changelog).
## Contribution
-Contributions are welcome! If you encounter any issues or want to contribute to the project, please feel free to
-**[raise an issue](https://github.com/CodeCraftersCN/jdevkit/issues/new)** or **[submit a pull request](https://github.com/CodeCraftersCN/jdevkit/compare)**.
+Contributions are welcome! If you encounter any issues or want to contribute to the project, please feel free to **[raise an issue](https://github.com/CodeCraftersCN/jdevkit/issues/new)** or **[submit a pull request](https://github.com/CodeCraftersCN/jdevkit/compare)**.
## License
This project is licensed under the [Apache License 2.0](LICENSE).
## Contact
-For any questions or feedback, you can [open an issue](https://github.com/CodeCraftersCN/jdevkit/issues/new) on GitHub
-or join our [Discord community]().
\ No newline at end of file
+If you have any suggestions, ideas, don't hesitate contacting us via [GitHub Issues](https://github.com/CodeCraftersCN/jdevkit/issues/new) or [Discord Community](https://discord.gg/NQK9tjcBB8).
+
+If you face any bugs while using our library and you are able to fix any bugs in our library, we would be happy to accept pull requests from you on [GitHub](https://github.com/CodeCraftersCN/jdevkit/compare).
\ No newline at end of file