Fix autotools

Author: froggleston

_includes/install_instructions/shell.html

@@ -159,7 +159,7 @@ <h4 id="shell-windows-wsl-install-software">Installing software within WSL 2</h4
                 <p>
                     Install updated versions of the base packages required across all our lessons, by typing:
                     <ul>
-                        <li><code>sudo apt install git build-essential autotools python3 r-base</code></li>
+                        <li><code>sudo apt install git build-essential autoconf automake libtool python3 r-base</code></li>
                     </ul>
                 </p>
                 <p>