Create Nsight_Using.md

Author: DragonPara

src/CUDA/Nsight/Nsight_Using.md

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+## record a using method of remote
+`nsys profile -o timeline -force-overwrite true ./demo`
+
+**the command will run `demo` procedure and generate `timeline.nsys-rep`**
+
+then send it to your laptop or workstation, pull `timeline.nsys-rep` to nsight system.
+
+[](../photo/nsight_screenshot.png)