Proper identation and CHANGELOG entry

CHANGELOG.md

@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+ - Fix `hf 15 sim` - Added basic response to GET_SYSTEM_INFO and READBLOCK requests in order to fix iso15693 tag sim
  - Added `mf mfu sim t 7 n <numreads>` - MFU emulation now supports automatic exit after <num> blocks read. (@cyberpunk-re)
  - Added T55xx Guide to assist in learning how to use the T55xx chip (@mwalker33)
  - Fix 'hf iclass wrbl' - dealing with tags in unsecured vs secured pagemode now is correct (@iceman1001)

armsrc/iso15693.c

@@ -1727,6 +1727,7 @@ void SimTagIso15693(uint8_t *uid) {
         if ((cmd_len >= 5) && (cmd[0] & ISO15_REQ_INVENTORY) && (cmd[1] == ISO15_CMD_INVENTORY)) {
             bool slow = !(cmd[0] & ISO15_REQ_DATARATE_HIGH);
             uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM;
+            
             // Build INVENTORY command
             uint8_t resp_inv[CMD_INV_RESP] = {0};
 
@@ -1813,7 +1814,6 @@ void SimTagIso15693(uint8_t *uid) {
     
             tosend_t *ts = get_tosend();
 
-    
             TransmitTo15693Reader(ts->buf, ts->max, &response_time, 0, slow);
             LogTrace_ISO15693(resp_readblock, CMD_READBLOCK_RESP, response_time * 32, (response_time * 32) + (ts->max * 32 * 64), NULL, false);
         }