Update README.md

Author: shimwell

README.md

@@ -16,7 +16,7 @@ Install instructions on Ubuntu 22.04
 sudo apt-get install curl
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 . "$HOME/.cargo/env"
-rustup target add wasm32-unknown-unknown`
+rustup target add wasm32-unknown-unknown
 cargo build --target wasm32-unknown-unknown --release
 cargo install --locked trunk
 trunk serve --open