docs: Fix links to vision

README.md

@@ -5,7 +5,7 @@
 
 OpenDAL is an Open Data Access Layer that enables seamless interaction with diverse storage services.
 
-OpenDAL's development is guided by its vision of **One Layer, All Storage** and its core principles: **Open Community**, **Solid Foundation**, **Fast Access**, **Object Storage First**, and **Extensible Architecture**. Read the explained vision at [OpenDAL Vision](https://opendal.apache.org/docs/vision).
+OpenDAL's development is guided by its vision of **One Layer, All Storage** and its core principles: **Open Community**, **Solid Foundation**, **Fast Access**, **Object Storage First**, and **Extensible Architecture**. Read the explained vision at [OpenDAL Vision](https://opendal.apache.org/vision).
 
 <img src="https://opendal.apache.org/img/architectural.png" alt="OpenDAL Architectural" width="61.8%" />
 

core/src/docs/upgrade.md

@@ -6,7 +6,7 @@
 
 OpenDAL has refined its vision to **One Layer, All Storage**, driven by the following core principles: **Open Community**, **Solid Foundation**, **Fast Access**, **Object Storage First**, and **Extensible Architecture**.
 
-Explore the detailed vision at [OpenDAL Vision](https://opendal.apache.org/docs/vision).
+Explore the detailed vision at [OpenDAL Vision](https://opendal.apache.org/vision).
 
 ### RFC-5313: Remove Metakey
 

core/src/lib.rs

@@ -22,7 +22,7 @@
 
 //! Apache OpenDAL™ is an Open Data Access Layer that enables seamless interaction with diverse storage services.
 //!
-//! OpenDAL's development is guided by its vision of **One Layer, All Storage** and its core principles: **Open Community**, **Solid Foundation**, **Fast Access**, **Object Storage First**, and **Extensible Architecture**. Read the explained vision at [OpenDAL Vision](https://opendal.apache.org/docs/vision).
+//! OpenDAL's development is guided by its vision of **One Layer, All Storage** and its core principles: **Open Community**, **Solid Foundation**, **Fast Access**, **Object Storage First**, and **Extensible Architecture**. Read the explained vision at [OpenDAL Vision](https://opendal.apache.org/vision).
 //!
 //! # Quick Start
 //!

website/blog/2023-08-15-how-opendal-read-data/index.md

@@ -17,7 +17,7 @@ The first article will discuss OpenDAL's most commonly used data reading functio
 
 Before starting to introduce the specific OpenDAL interface, let's first get familiar with the OpenDAL project.
 
-[OpenDAL](https://github.com/apache/opendal) is an Apache Incubator project aimed at helping users access data from various storage services in a unified, convenient, and efficient way. Its project [vision](https://opendal.apache.org/docs/vision) is "free access to data":
+[OpenDAL](https://github.com/apache/opendal) is an Apache Incubator project aimed at helping users access data from various storage services in a unified, convenient, and efficient way. Its project [vision](https://opendal.apache.org/vision) is "free access to data":
 
 - Free from services: Any service can be accessed freely through native interfaces
 - Free from implementations: No matter how the underlying implementation is, it can be called in a unified way