diff --git a/README.md b/README.md
index f7aa675..5499ea1 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ You could use any HTTP server that sets these headers.
 
 ## Peripherals
 
-# Terminal
+### Terminal
 
 | Name   | Address | Size / B | Access       |
 |--------|---------|----------|--------------|
@@ -63,7 +63,7 @@ In order to be distinguishable from the empty state, the ring buffers
 must never be completely full -- there must always be *at least one*
 unoccupied byte between the tail and the head.
 
-# System status
+### System status
 
 | Name     | Address | Size / B | Access       |
 |----------|---------|----------|--------------|