Correct FreeRTOS.org link in main_full.c for: (#510)

* FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_full.c
* FreeRTOS/Demo/Posix_GCC/main_full.c

FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_full.c

@@ -35,7 +35,7 @@
  * the timing information in the FreeRTOS+Trace logs have no meaningful units.
  * See the documentation page for the Linux simulator for an explanation of
  * the slow timing:
- * https://freertos-wordpress.corp.amazon.com/FreeRTOS-simulator-for-Linux.html
+ * https://www.freertos.org/FreeRTOS-simulator-for-Linux.html
  * - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
  *
  * NOTE 2:  This project provides two demo applications.  A simple blinky style

FreeRTOS/Demo/Posix_GCC/main_full.c

@@ -35,7 +35,7 @@
  * the timing information in the FreeRTOS+Trace logs have no meaningful units.
  * See the documentation page for the Linux simulator for an explanation of
  * the slow timing:
- * https://freertos-wordpress.corp.amazon.com/FreeRTOS-simulator-for-Linux.html
+ * https://www.freertos.org/FreeRTOS-simulator-for-Linux.html
  * - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
  *
  * NOTE 2:  This project provides two demo applications.  A simple blinky style