Nomenclature tweak for GH (#1613)

Applies to #1610

Auto-merge

Author: Martii

views/pages/newScriptPage.html

@@ -308,7 +308,7 @@ <h3><i class="octicon octicon-mark-github"></i> GitHub</h3>
               <h4>Instructions</h4>
               <p>Optionally you may upload the script to the site first. You may also use <a href="{{{authedUser.userGitHubRepoListPageUrl}}}">Import from Github</a> to speed things up as a shortcut.</p>
               <ol>
-                <li>Ensure that you have and use a <code>master</code> branch.</li>
+                <li>Ensure that you have and use a default <code>master</code> branch.</li>
                 <li>On your target GitHub repo, click Settings &gt; Webhooks &gt; Add Webhook.</li>
                 <li>In the Payload URL input, paste<br /><code>https://openuserjs.org/github/hook</code></li>
                 <li>Change the Content Type dropdown to<br /><code>application/x-www-form-urlencoded</code></li>