chore: 🤖 change cmd to use +stable release on install manual

docs/node/install.md

@@ -361,13 +361,9 @@ cargo update
 Start the `install` process by running the command:
 
 ```sh
-cargo build
+cargo +stable build --release
 ```
 
-:::tip
-At the time of writing, Fleek Network lightning is under development, thus we're using the `cargo build` command. Alternatively, you're recommended to use the `+stable`, e.g. `cargo +stable build`.
-:::
-
 The installation process is long, as it compiles the application binary for us from the source code.
 
 🌈 Here's the output when successful! Note, that the output might differ slightly from time of writting.