Docs: Add libtool as a linux void build dependency

Author: usebeforefree

Documentation/BuildInstructionsLadybird.md

@@ -137,7 +137,7 @@ This virtual environment can be created once and reused in future shell sessions
 
 ```
 sudo xbps-install -Su # (optional) ensure packages are up to date to avoid "Transaction aborted due to unresolved dependencies."
-sudo xbps-install -S git bash gcc python3 curl cmake zip unzip linux-headers make pkg-config autoconf automake autoconf-archive nasm MesaLib-devel ninja qt6-base-devel qt6-tools-devel qt6-wayland-devel
+sudo xbps-install -S git bash gcc python3 curl cmake libtool zip unzip linux-headers make pkg-config autoconf automake autoconf-archive nasm MesaLib-devel ninja qt6-base-devel qt6-tools-devel qt6-wayland-devel
 ```
 
 ### NixOS or with Nix: