diff --git a/readme.md b/readme.md
index 9cd544e..01ab2ff 100644
--- a/readme.md
+++ b/readme.md
@@ -17,9 +17,15 @@ The RFID doorlock consists of a few components that allow us to have a offline c
 
 Currently, we are using Cobot to manage our membership as well as RFID card numbers (checkin tokens in Cobot parlance).
 
+Eventually, we can remove Cobot and swap it with our own service if we desire.
+
 #### Tessel Microcontroller
 
-The doorlock consists of a Tessel microcontroller powered by node.js (JavaScript). The doorlock has an attached USB adapter with an SD card to store the member's cards (in `json` format).
+The doorlock consists of a Tessel microcontroller powered by node.js (JavaScript).
+
+#### USB SD Card List
+
+The doorlock has an attached USB adapter with an SD card to store the member's cards (in `json` format).
 
 #### USB RFID Reader
 
@@ -41,8 +47,6 @@ When the device first turns on it connects to WiFi and then fetches all the memb
 
 We periodically sync this list every few minutes (configurable).
 
-Eventually, we can remove Cobot and swap it with our own service if we desire.
-
 #### Access Log
 
 We log every door open event so we can keep and eye on usage. We log an entry containing the member name, datetime and RFID card number in a `json` file. This list is sent to Cobot periodically so we can create a "checkin" for a member. Once the list is pushed successfully we clear out the file.