add device nubia Z17

Change-Id: I5e61b5914f84d5d77a8d75a655c368fdb252bdd9
diff --git a/_nubia/nubianx563j.markdown b/_nubia/nubianx563j.markdown
new file mode 100644
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+++ b/_nubia/nubianx563j.markdown
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+---
+layout: device
+title:  "Nubia ZTE Z17"
+codename: nx563j
+downloadfolder: nx563j
+supportstatus: Current
+maintainer: youyim
+oem: Nubia
+devicetree: https://github.com/TeamWin/android_device_nubia_nx563j
+---
+
+{% include disclaimer.html %}
+
+{% include supportstatus.html %}
+
+{% include download.html %}
+
+{% include twrpinstall.html %}
+
+Read these instructions and follow them carefully.
+
+On your device, go into Settings -> About and find the Build Number and tap on it 7 times to enable developer settings. Press back and go into Developer Options and enable OEM unlocking.
+
+unlock bootloader and flash twrp
+
+fastboot oem nubia_unlock NUBIA_NX563J
+
+fastboot flash recovery twrp.img