Revert "Destroyed _Footer (markdown)"

This reverts commit e4f5e46ad63f69de55557491490ce0300e71de98.
diff --git a/_Footer.md b/_Footer.md
new file mode 100644
index 0000000..8bb5512
--- /dev/null
+++ b/_Footer.md
@@ -0,0 +1,3 @@
+<!-- STOP.  PRESS THE BACK BUTTON.  DO NOT EDIT.  DO NOT CLICK "SAVE PAGE". -->
+<!-- If you have a question, see https://go.dev/wiki/Questions -->
+<!-- This is a wiki. We trust you to be a good person. -->