fix: WASM32 target needed for stable Linux build

Author: Rqnsom

content/md/en/docs/install/linux.md

@@ -93,6 +93,7 @@ To install the Rust toolchain on Linux:
    ```bash
    rustup default stable
    rustup update
+   rustup target add wasm32-unknown-unknown
    ```
 
 1. Add the `nightly` release and the `nightly` WebAssembly (wasm) targets to your development environment by running the following commands: