update .env example to reflect latest flags (#238)

.env.example

@@ -1,15 +1,13 @@
 DEBUG=FALSE
-
 CASHU_DIR=~/.cashu
 
 # --------- WALLET ---------
 
+# Address of the default mint to connect to
 # MINT_URL=https://localhost:3338
 MINT_HOST=127.0.0.1
 MINT_PORT=3338
 
-MINT_DATABASE=data/mint
-
 # use builtin tor, this overrides SOCKS_HOST and SOCKS_PORT
 TOR=TRUE
 
@@ -23,9 +21,16 @@ NOSTR_PRIVATE_KEY=nostr_privatekey_here_hex_or_bech32
 # nostr relays (comma separated list)
 NOSTR_RELAYS=["wss://nostr-pub.wellorder.net"]
 
+# Wallet API port
+API_PORT=4448
+
 # --------- MINT ---------
 
-# MINT
+# Network
+MINT_LISTEN_HOST=127.0.0.1
+MINT_LISTEN_PORT=3338
+
+# Mint information
 MINT_INFO_NAME="My Cashu mint"
 MINT_INFO_DESCRIPTION="The short mint description"
 MINT_INFO_DESCRIPTION_LONG="A long mint description that can be a long piece of text."
@@ -33,19 +38,28 @@ MINT_INFO_CONTACT=[["email","contact@me.com"], ["twitter","@me"], ["nostr",  "np
 MINT_INFO_MOTD="Message to users"
 
 MINT_PRIVATE_KEY=supersecretprivatekey
+MINT_DATABASE=data/mint
+# increment derivation path to rotate to a new keyset
+MINT_DERIVATION_PATH="0/0/0/0"
 
+# Lightning 
 # Supported: LNbitsWallet, FakeWallet
-MINT_LIGHTNING_BACKEND=LNbitsWallet
-
-MINT_LISTEN_HOST=127.0.0.1
-MINT_LISTEN_PORT=3338
-
-LIGHTNING=TRUE
-# fee to reserve in percent of the amount
-LIGHTNING_FEE_PERCENT=1.0 
-# minimum fee to reserve
-LIGHTNING_RESERVE_FEE_MIN=4000 
+MINT_LIGHTNING_BACKEND=LNbitsWallet 
 
+# for use with LNbitsWallet
 MINT_LNBITS_ENDPOINT=https://legend.lnbits.com
 MINT_LNBITS_KEY=yourkeyasdasdasd
 
+# fee to reserve in percent of the amount
+LIGHTNING_FEE_PERCENT=1.0 
+# minimum fee to reserve
+LIGHTNING_RESERVE_FEE_MIN=2000 
+
+# Management
+# max peg-in amount in satoshis
+# MINT_MAX_PEG_IN=100000 
+# max peg-out amount in satoshis
+# MINT_MAX_PEG_OUT=100000 
+# use to allow only peg-out to LN
+# MINT_PEG_OUT_ONLN=FALSE 
+