Update CARD_ANDROID.md

docs/CARD_ANDROID.md

@@ -2,30 +2,30 @@
 
 ## Introduction
 
-Here we describe how to create your own bolt card.
+Here we describe how to create your own bolt cards with the Bolt Card Android app and the Bolt Card service.
 
 ## Resources
  
+- some `NXP DNA 424 NTAG` cards
 - an Android device with NFC
-- the BoltCard app
-- [app usage document](https://github.com/boltcard/bolt-nfc-android-app#usage)
+- a Bolt Card serice
+- [the Bolt Card app](https://github.com/boltcard/bolt-nfc-android-app)
+- [the Bolt Card app usage document](https://github.com/boltcard/bolt-nfc-android-app#usage)
 
 ## Steps
 
 ### Install the app
 
-[Bolt Card Android app](https://github.com/boltcard/bolt-nfc-android-app)  
-- install the app from source or apk  
+- install the app from source or apk
 
-### Write to the card
-- open the app
+### Write the URI template to the card
+on the app
 - select `Write NFC` 
 - enter your domain and path in the text entry box given
 ```
 card.yourdomain.com/ln
 ```
-- bring the card to the device for programming the URI template  
-
+- bring the card to the device for programming the URI template
 - select `Read NFC`
 - check that the URI looks correct
 ```
@@ -33,29 +33,28 @@ lnurlw://card.yourdomain.com/ln?c=...&p=...
 ```
 - note the UID value
 
-### Get the keys from the host
-- on the bolt card server
+### Write the key values to the card
+on the bolt card server
 - enter the `createboltcard` directory
 - `$ go build`
 - `./createboltcard`
-- this will give you a one use link in text and QR code form  
+- this will give you a one use link in text and QR code form
 
-- on the app
+on the app
 - select `Key Management`
 - click `scan QR code from console`
 - scan the QR code
 - bring the card to the device for programming the keys
 
-### Update the host card record
-- on the bolt card server
+### Update the card record on the server
+on the bolt card server
 - `$ psql card_db`
 - `card_db=# select card_id, one_time_code from cards order by card_id desc limit 1;`
-- check that this is the correct record
-- `card_db=# update cards set uid = '*UID value from before without the 0x prefix*' where card_id=*card_id from before*;`
-- `card_db=# update cards set enabled = 'Y' where card_id=*card_id from before*;`
+- check that this is the correct record (one_time_code matches from before)
+- `card_db=# update cards set uid = 'UID value from before without the 0x prefix' where card_id=card_id from before;`
+- `card_db=# update cards set enabled = 'Y' where card_id=card_id from before;`
 
 ### Make a payment
 - monitor the bolt card service logs
 - `$ journalctl -u boltcard.service -f`
 - use a PoS setup to read the bolt card, e.g. [Breez wallet](https://breez.technology/)
-- for more support options, see [Bolt card service installation](INSTALL.md)