fix: error links

Author: VShawn

source/docs/usage/database/data-synchronization.md

@@ -35,7 +35,7 @@ recommended tools:
 
 ![MySQL](img/mysql.png)
 
-Using a MySQL database is a more professional way to synchronize data. When server info is edited on on device, other devices will update the modify in a few minutes. Go to `Options` -> `Database` -> `MySQL` to set up the database, check [Online database](usage/database/use-a-online-database.md) for more details.
+Using a MySQL database is a more professional way to synchronize data. When server info is edited on on device, other devices will update the modify in a few minutes. Go to `Options` -> `Database` -> `MySQL` to set up the database, check [Online database](./usage/database/use-a-online-database.md) for more details.
 
 ![MySQL](img/mysql-add.jpg)
 

source/docs/usage/database/use-online-database.md

@@ -9,7 +9,7 @@ This is where configuring multiple databases becomes useful:
 
 - **At home**: Connect to the MySQL database on your NAS to manage your personal servers when you back home.
 - **On work**: Connect to both the MySQL on your home NAS and the MySQL on your company server to access the servers for work when you are in your office.
-- **For team**: With MySQL, you can share the server with your colleagues, make them connect to different MySQL database can make sure they can only see the servers they have permission to access, more detail: [Team sharing](usage/team/team-sharing.md)
+- **For team**: With MySQL, you can share the server with your colleagues, make them connect to different MySQL database can make sure they can only see the servers they have permission to access, more detail: [Team sharing](./usage/team/team-sharing.md)
 
 ## Use MySQL
 

source/docs/usage/overview.md

@@ -15,7 +15,7 @@
 
     ![add-server](./img/add-server4.jpg)
 
-5. (Optional) Configure scripts for the server, such as opening VPN before starting remote desktop, or closing VPN after closing remote desktop. Scripts support cmd, PowerShell, and Python. Please see the [Open a VPN before connect](usage/misc/open-a-vpn-before-connect.md) for further details.
+5. (Optional) Configure scripts for the server, such as opening VPN before starting remote desktop, or closing VPN after closing remote desktop. Scripts support cmd, PowerShell, and Python. Please see the [Open a VPN before connect](./usage/misc/open-a-vpn-before-connect.md) for further details.
 
 6. Continue entering server **address**, **port**, **credentials** and other information, and select your desired connection settings.
 7. Click the **`Save`** button to complete adding the server and return to the homepage.
@@ -54,7 +54,7 @@ By selecting multiple servers using the checkboxes and clicking the **`Edit`** b
 !!! warning inline end
     The exported data is stored in plain text, so please handle it with care.
 
-When some servers are selected, **`Export`** button can export selected items to json file which you can import it to another PC or simply make a backup. Please see the [Data synchronization](usage/database/data-synchronization.md) for further details.
+When some servers are selected, **`Export`** button can export selected items to json file which you can import it to another PC or simply make a backup. Please see the [Data synchronization](./usage/database/data-synchronization.md) for further details.
 
 ### Data import
 
@@ -101,7 +101,7 @@ If the you miss the auto-migration, you can still import it manually:
 
 You can use the default shortcut ++alt++ + ++m++ call the launcher, then type some key words to search the server you want to connect, then press ++enter++ to start.
 
-For more details about the Launcher, please see the [Launcher](usage/launcher/basic.md).
+For more details about the Launcher, please see the [Launcher](./usage/launcher/basic.md).
 
 ## Session view