Link board names to product pages in SoftwareSerial pins table

Some board names (e.g., "Nano") are potentially ambiguous to the reader. This is avoided without the introduction of
verbosity by linking to the specific hardware page.

Author: per1234

content/learn/07.built-in-libraries/04.software-serial/software-serial.md

@@ -28,11 +28,11 @@ If your project requires simultaneous data flows, see Paul Stoffregen's [AltSoft
 
 ### Supported Pins
 
-| Board               | RX                                           | TX  |
-| ------------------- | -------------------------------------------- | --- |
-| Arduino 101         | 0-12, 14 (A0) - 19 (A5)                      |     |
-| Leonardo<br />Micro | 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI) | Any |
-| Mega<br />Mega 2560 | 10-15, 50-53, A8 (62)-A15 (69)               | Any |
+| Board                                                                                               | RX                                           | TX  |
+| --------------------------------------------------------------------------------------------------- | -------------------------------------------- | --- |
+| [Arduino 101](/retired/boards/arduino-101-619/)                                                     | 0-12, 14 (A0) - 19 (A5)                      |     |
+| [Leonardo](/hardware/leonardo/)<br />[Micro](/hardware/micro/)<br />[Yún Rev2](/hardware/yun-rev2/) | 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI) | Any |
+| [Mega](/retired/other/hardware-pictures/)<br />[Mega 2560](/hardware/mega-2560/)                    | 10-15, 50-53, A8 (62)-A15 (69)               | Any |
 
 ## Examples