Make Configuration block more visible

Moved down PSK a bit down to make it clear, that it doesnt need to be changed.
Made it more clear which lines need to be checked/modified

src/config.h

@@ -3,9 +3,8 @@
 #define REGION   RegionCode_EU865   // define your region here. For US, RegionCode_US, CN RegionCode_Cn etc.
 char    MESHTASTIC_NAME[12] = {"Default"}; // Channel Name, but without "-Xy" suffix , e.g. use "Test" instead of "Test-A"
 #define MESHTASTIC_SPEED    3   // 0 = short range, 1 = medium range, 2 = long range, 3 = very long range
-
 #define TX_MAX_POWER     22     // max output power in dB, keep in mind the maximums set by law and the hardware
-#define MESHTASTIC_PSK      { 0x10, 0xd4, 0xf1, 0xbb, 0x3a, 0x20, 0x29, 0x07, 0x59, 0xf0, 0xbc, 0xff, 0xab, 0xcf, 0x4e, 0x69, 0xbf }
+// CONFIGURATION END
 
 #define RGB_GREEN                   0x000300    // receive mode  --- not longer used (save energy)
 #define RGB_RED                     0x030000    // send mode
@@ -29,6 +28,9 @@ typedef enum _RegionCode {
 } RegionCode;
 */
 
+// the PSK is not used for encrypion/decryption, you can leave it as it is
+#define MESHTASTIC_PSK      { 0x10, 0xd4, 0xf1, 0xbb, 0x3a, 0x20, 0x29, 0x07, 0x59, 0xf0, 0xbc, 0xff, 0xab, 0xcf, 0x4e, 0x69, 0xbf }
+
 typedef struct {
     uint32_t to, from, id; 
     uint8_t flags;      // The bottom three bits of flags are used to store hop_limit, bit 4 is the WANT_ACK flag