Writting documentation - general concepts.

Documentation/Tutorials/CMakeLists.txt

...mentation/Tutorials/CoreConcepts/tutorial_CoreConcepts.md

.../snippet_algorithms_and_lambda_functions_parallel_for.cpp

...pts/snippet_algorithms_and_lambda_functions_reduction.cpp

...s/snippet_algorithms_and_lambda_functions_reduction_2.cpp

...ppet_algorithms_and_lambda_functions_reduction_cublas.cpp

...ppet_devices_and_allocators_arrays_assignment_example.cpp

...ts/snippet_devices_and_allocators_arrays_device_check.cpp

...nippet_devices_and_allocators_arrays_device_deduction.cpp

...oncepts/snippet_devices_and_allocators_arrays_example.cpp

...snippet_devices_and_allocators_arrays_setsize_example.cpp

...s/snippet_shared_pointers_and_views_capture_reference.cpp

...cepts/snippet_shared_pointers_and_views_capture_value.cpp

...ncepts/snippet_shared_pointers_and_views_capture_view.cpp

...snippet_shared_pointers_and_views_capture_view_change.cpp

...ippet_shared_pointers_and_views_capture_view_change_2.cpp

...ion/Tutorials/GeneralConcepts/tutorial_GeneralConcepts.md

Documentation/Tutorials/index.md