Fix typo and format

docs/PN532.md

@@ -19,7 +19,7 @@ Please note that although the datasheet mentions that the PN532 can be used on S
 
 ## Configuration
 
-`#define USE_PN532_DATA_FUNCTION`    
+`#define USE_PN532_DATA_FUNCTION`
 ==This function is experimental.== There are limitations because it seems not all cards are supported by this driver and/or the PN532 module. See issue [4941](https://github.com/arendst/Tasmota/issues/4941) for more information. We are still researching the 
 
 ### Wiring
@@ -33,16 +33,16 @@ After selecting the correct protocol mode and connecting the HSU TX/RX pins of t
 
 | PN532   | ESP |
 |---|---|
-|GND   |GND   
-|VCC   |3.3V   
-|SDA   |GPIOx 
+|GND   |GND
+|VCC   |3.3V
+|SDA   |GPIOx
 |SCL   |GPIOy
 
 
 ### Tasmota Settings 
 In the **_Configuration -> Configure Module_** page assign:
 
-- GPIOx to `PN532 Rx (139)`   
+- GPIOx to `PN532 Rx (139)`
 - GPIOy to `PN532 Tx (138)`
 
 The module will reboot when you save this configuration.
@@ -70,7 +70,7 @@ The output on the console will look similar to the below when a new card is dete
 18:23:25 MQT: stat/tasmota/RESULT = {"Event":"Done"}
 ```
 
-The UID of the card/tag is reported and any text stored in BLOCK 1 of a Mifare Classic card or PAGE4-7 of a NTAG card (up to 16 characters in length) is reported in the `DATA` field of the JSON sent via telemetry. Please note that the `DATA` field field can contain only printable chars.
+The UID of the card/tag is reported and any text stored in BLOCK 1 of a Mifare Classic card or PAGE4-7 of a NTAG card (up to 16 characters in length) is reported in the `DATA` field of the JSON sent via telemetry. Please note that the `DATA` field can contain only printable chars.
 
 The content of the `DATA` on BLOCK 1 of a Mifare Classic (PAGE4-7 of a NTAG) card can be set as follows