Added link to whitepaper

Author: jimholtz

powerapps-docs/index.md

@@ -348,6 +348,7 @@ ms.custom:
                                     <p><a class="barLink" style="font-size: 0.95rem" href="/power-platform/admin/get-help-support">Get Help + Support</a></p>
                                     <p><a class="barLink" style="font-size: 0.95rem" href="/power-platform/admin/preview-april-2019-updates">Opt in to 2019 release wave 2</a></p>
                                     <p><a class="barLink" style="font-size: 0.95rem" href="/power-platform/admin/admin-settings">Manage settings</a></p>
+                                    <p><a class="barLink" style="font-size: 0.95rem" href="https://aka.ms/powerappsadminwhitepaper">Whitepaper: Administering a low-code development platform</a></p>
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