Add references to new stop --all flag

Author: danbarr

docs/toolhive/guides-cli/install.mdx

@@ -161,7 +161,7 @@ On Windows, you must stop all running MCP servers before upgrading ToolHive,
 otherwise the upgrade will fail because Windows locks the executable while it
 runs.
 
-Run `thv stop <server-name>` to stop each server. After you complete the
+Run `thv stop --all` to stop all running servers. After you complete the
 upgrade, restart them using `thv restart <server-name>`.
 
 :::
@@ -247,7 +247,7 @@ To uninstall ToolHive:
    # List running servers
    thv list
    # Stop and remove each server
-   thv stop <server-name>
+   thv stop --all
    thv rm <server-name>
    ```
 
@@ -363,9 +363,7 @@ To resolve this:
 1. Stop all running MCP servers:
 
    ```powershell
-   thv list
-   thv stop <server-name>
-   # repeat for each server
+   thv stop --all
    ```
 
 2. After stopping all servers, run the upgrade command again:
@@ -381,6 +379,7 @@ To resolve this:
 4. Restart your MCP servers:
 
    ```powershell
+   thv list --all
    thv restart <server-name>
    # repeat for each server
    ```

docs/toolhive/guides-cli/manage-mcp-servers.md

@@ -60,12 +60,14 @@ To stop a running MCP server:
 thv stop <server-name>
 ```
 
-This stops the server and the associated proxy process but keeps the container
-for future use.
+This stops the server and the associated proxy process, removes the MCP server's
+entry from your configured clients, but keeps the container for future use.
+
+Add the `--all` flag to stop all running servers.
 
 ### Restart a server
 
-To restart a stopped MCP server:
+To restart a stopped MCP server and add it back to your configured clients:
 
 ```bash
 thv restart <server-name>