Update title of std pin names porting guide

Author: Marcelo Salazar

docs/porting/standard_pin_names/pin_names_porting.md

@@ -1,6 +1,6 @@
-# Standard Pin Names Porting Guide
+# Standard Pin Names
 
-This guide aims to help vendors to comply with the new pin naming guidelines.
+This porting guide aims to help vendors to comply with the new pin naming guidelines.
 
 There is a set of generic guidelines that apply to all boards, and further sets of guidelines that additionally apply to boards that have certain compatible connectors.
 
@@ -340,4 +340,4 @@ mbedgt: test case report:
 | DISCO_L475VG_IOT01A-GCC_ARM | DISCO_L475VG_IOT01A | hal-tests-tests-pin_names-arduino_uno | UART | 1 | 0 | OK | 0.07 |
 mbedgt: test case results: 37 OK
 mbedgt: completed in 34.33 sec
-```
+```