update memory stats examples links

Author: maciejbocianski

docs/api/memory/MemTrace.md

@@ -24,7 +24,7 @@ For a step-by-step guide about how to use optimize memory using runtime memory t
 
 ## Memory tracing example
 
-[![View code](https://www.mbed.com/embed/?url=https://os.mbed.com/teams/mbed_example/code/memory_tracing_example/)](https://os.mbed.com/teams/mbed_example/code/memory_tracing_example/file/168ab14e6694/main.cpp)
+[![View code](https://www.mbed.com/embed/?url=https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Memory_tracing_ex_1/)](https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Memory_tracing_ex_1/main.cpp)
 
 ## Related content
 

docs/api/memory/runtime_mem_trace.md

@@ -44,7 +44,7 @@ Find the source of the default callback [here](https://github.com/ARMmbed/mbed-o
 
 A simple code example that uses the memory tracer on a K64F board:
 
-[![View code](https://www.mbed.com/embed/?url=https://os.mbed.com/teams/mbed_example/code/memory_tracing_example/)](http://os.mbed.com/teams/mbed_example/code/memory_tracing_example/file/168ab14e6694/main.cpp)
+[![View code](https://www.mbed.com/embed/?url=https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Memory_tracing_ex_1/)](https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Memory_tracing_ex_1/main.cpp)
 
 It outputs the following trace:
 

docs/api/memory/runtime_stats.md

@@ -49,7 +49,7 @@ Heap statistics provide exact information about the number of bytes dynamically
 
 ### Example program using heap statistics
 
-[![View code](https://www.mbed.com/embed/?url=https://os.mbed.com/teams/mbed_example/code/heap_stats_example/)](https://os.mbed.com/teams/mbed_example/code/heap_stats_example/file/c084f1df237e/main.cpp)
+[![View code](https://www.mbed.com/embed/?url=https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Heap_Stats_ex_1/)](https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Heap_Stats_ex_1/main.cpp)
 
 ### Side effects of enabling heap statistics
 
@@ -99,4 +99,4 @@ Both of these functions return a struct containing the following:
 
 ### Example program using stack statistics
 
-[![View code](https://www.mbed.com/embed/?url=https://os.mbed.com/teams/mbed_example/code/stack_stats_example/)](http://os.mbed.com/teams/mbed_example/code/stack_stats_example/file/539750137652/main.cpp)
+[![View code](https://www.mbed.com/embed/?url=https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Stack_Stats_ex_1/)](https://github.com/ARMmbed/mbed-os-examples-docs_only/blob/master/APIs_Platform/Stack_Stats_ex_1/main.cpp)