docs: Adding Android Open Accessory Protocol content to s.a.c

Change-Id: I407be1f2fb1d4ff2793efbe697434b715183b56d
diff --git a/src/tech/sidebar.md b/src/tech/sidebar.md
index c3701fd..09f2f2f 100644
--- a/src/tech/sidebar.md
+++ b/src/tech/sidebar.md
@@ -5,3 +5,4 @@
 - [Security](/tech/security/index.html)
 - [Input](/tech/input/index.html)
 - [Data Usage](/tech/datausage/index.html)
+- [Accessories](/tech/accessories/index.html)
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