clean up docs

quorum-vault-system/src/component-documents/openpgp-setup.md

@@ -36,13 +36,19 @@ as such need to be set up in a manner that minimizes exposure risks.
     ```
     Note: default admin PIN is 12345678
 
+1. Set expiry time via environment variable - you can update 2y to desired value:
+
+    ```
+    $ export KEYFORK_OPENPGP_EXPIRE=2y
+    ```
+
 1. Generate a mnemonic, encrypting to a newly-generated key:
         
     ```
     $ keyfork mnemonic generate --encrypt-to-self public.asc,output=encrypted.asc --provision openpgp-card,identifier="$card_id"
     ```
 
-	  Note: The PIN can't use sequential numbers, characters or repeated patterns.
+	Note: The PIN can't use sequential numbers, characters or repeated patterns.
 
 1. Rename output to use key fingerprint: