twrp checklist: add checklist directly to markdown

tinyw.in is dead so let's add it to the page. Thanks to
https://gitlab.com/morfikov/android_device_tp-link_tp701a for
having a copy in his README.md

Change-Id: Ie3ee6d672fd562750010769b32d1b14d88a2f4cd
diff --git a/_faq/OfficialMaintainer.markdown b/_faq/OfficialMaintainer.markdown
index 3267877..8dc3026 100644
--- a/_faq/OfficialMaintainer.markdown
+++ b/_faq/OfficialMaintainer.markdown
@@ -11,5 +11,40 @@
 <li>Push your tree to Github.com.</li>
 We need to be able to fork your tree to our TeamWin repository. We can then add it to our Gerrit.twrp.me and Jenkins.twrp.me instance for building. If you want to be an active maintainer, we can give you +2 rights to merge new updates directly to our repository at Github.
 <li>Verify your device tree works</li>
-Make sure your image works as intended. You can use <a href="http://tinyw.in/XCN3">this</a> for a functional list to test your device.
+Make sure your image works as intended. You can use the following for a functional list to test your device:
+<pre>
+Blocking checks
+- [ ] Correct screen/recovery size
+- [ ] Working Touch, screen
+- [ ] Backup to internal/microSD
+- [ ] Restore from internal/microSD
+- [ ] reboot to system
+- [ ] ADB
+
+Medium checks
+- [ ] update.zip sideload
+- [ ] UI colors (red/blue inversions)
+- [ ] Screen goes off and on
+- [ ] F2FS/EXT4 Support, exFAT/NTFS where supported
+- [ ] all important partitions listed in mount/backup lists
+- [ ] backup/restore to/from external (USB-OTG) storage (not supported by the device)
+- [ ] backup/restore to/from adb (https://gerrit.omnirom.org/#/c/15943/)
+- [ ] decrypt /data
+- [ ] Correct date
+
+Minor checks
+- [ ] MTP export
+- [ ] reboot to bootloader
+- [ ] reboot to recovery
+- [ ] poweroff
+- [ ] battery level
+- [ ] temperature
+- [ ] encrypted backups
+- [ ] input devices via USB (USB-OTG) - keyboard, mouse and disks (not supported by the device)
+- [ ] USB mass storage export
+- [ ] set brightness
+- [ ] vibrate
+- [ ] screenshot
+- [ ] partition SD card
+</pre>
 <li>Use our <a href="https://twrp.me/contactus/">Contact Us</a> page to send your repository to use for official inclusion at twrp.me.</li>