title: Committing .yarn directory to git when using yarn berry
body: <p>In the next version of yarn (&quot;berry&quot;) the <a href="https://yarnpkg.com/getting-started/install" rel="noreferrer">manual</a> states that one should just commit the directory created called <code>.yarn</code>, but if you use the multi-version setup for yarn, this directory contains the file <code>releases/yarn-berry.js</code> which seems to be the entire berry version of yarn, taking up more than 2MB of disk.</p>
  <p>This just seems really wrong - why should I commit a package manager to git, just to get it to work?</p>