Change parameters in create address section.

Author: officer47p

04_4__Interlude_Using_Curl.md

@@ -218,17 +218,19 @@ This is almost exactly the same output that you receive when you type `bitcoin-c
 
 After you know where your funds are, the next step in crafting a transaction is to get a change address. By now you've probably got the hang of this, and you know that for simple RPC commands, all you need to do is adjust the `method` is the `curl` command:
 ```
-$ curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.'
+$ curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["", "legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.'
 {
   "result": "mrSqN37TPs89GcidSZTvXmMzjxoJZ6RKoz",
   "error": null,
   "id": "curltest"
 }
 
+> **WARNING:** The parameters order is important when you are sending RPC commands using curl. For example here, if we had sent `"params": ["legacy"]` instead of `"params": ["", "legacy"]`, we would get a `bech32` address with a label of `"legacy"` instead of a `legacy` address, so pay attention to the order.
+
 ```
 At this point, we can even revert to our standard practice of saving results to variables with additional help from `jq`:
 ```
-$ changeaddress=$(curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.result')
+$ changeaddress=$(curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["", "legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.result')
 $ echo $changeaddress
 mqdfnjgWr2r3sCCeuTDfe8fJ1CnycF2e6R
 ```