Move debugging info into tech section

Change-Id: I0c848fdea00f6c354e79ca29f3b71d9fa52ed326
diff --git a/src/tech/debugging/sidebar2.md b/src/tech/debugging/sidebar2.md
new file mode 100644
index 0000000..3ab9f67
--- /dev/null
+++ b/src/tech/debugging/sidebar2.md
@@ -0,0 +1,2 @@
+# Debugging Topics #
+- [Native Memory Use](/tech/debugging/native-memory.html)