Ghost/ghost/admin/app/templates/settings/code-injection.hbs

<section class="gh-canvas">
    <header class="gh-canvas-header">
        <h2 class="gh-canvas-title" data-test-screen-title>Code injection</h2>
        <section class="view-actions">
            {{gh-task-button task=save class="gh-btn gh-btn-blue gh-btn-icon" data-test-save-button=true}}
        </section>
    </header>

    {{#if showLeaveSettingsModal}}
        {{gh-fullscreen-modal "leave-settings"
            confirm=(action "leaveSettings")
            close=(action "toggleLeaveSettingsModal")
            modifier="action wide"}}
    {{/if}}

    <section class="view-continer">
        <form id="settings-code" novalidate="novalidate">
            <fieldset>
                <p>
                    Ghost allows you to inject code into the top and bottom of your theme files without editing them. This allows for quick modifications to insert useful things like tracking codes and meta tags.
                </p>

                <div class="form-group settings-code">
                    <label for="ghost-head">Site Header</label>
                    <p>Code here will be injected into the <code>\{{ghost_head}}</code> tag on every page of the site</p>
                    {{gh-cm-editor settings.ghostHead id="ghost-head" class="gh-input settings-code-editor" name="codeInjection[ghost_head]" type="text" update=(action (mut settings.ghostHead))}}
                </div>

                <div class="form-group settings-code">
                    <label for="ghost-foot">Site Footer</label>
                    <p>Code here will be injected into the <code>\{{ghost_foot}}</code> tag on every page of the site</p>
                    {{gh-cm-editor settings.ghostFoot id="ghost-foot" class="gh-input settings-code-editor" name="codeInjection[ghost_foot]" type="text" update=(action (mut settings.ghostFoot))}}
                </div>
            </fieldset>
        </form>
    </section>
</section>