xiaomi: Add common markdown for devices based on Mi-Thorium device trees

Change-Id: Ieb72e1d4e8a9f78dca003a02dbe78cbbe54dd139
diff --git a/_xiaomi/xiaomi-mithorium-common.markdown b/_xiaomi/xiaomi-mithorium-common.markdown
new file mode 100644
index 0000000..7a4cb3f
--- /dev/null
+++ b/_xiaomi/xiaomi-mithorium-common.markdown
@@ -0,0 +1,17 @@
+{% include disclaimer.html %}
+
+{% include supportstatus.html %}
+
+{% include dmverity.html %}
+
+{% include xiaomiunlock.html %}
+
+{% include appinstall.html %}
+
+{% include download.html %}
+
+{% include twrpinstall.html %}
+
+{% include fastbootinstall.html %}
+
+{% include ddinstall.html %}