Lack of read examples

[garengllc]

This isn't an issue, but a request.

It would be nice to see some read examples. I am writing sigmf files fine via libsigmf, but am having some issues iterating through captures on reads. A quick example would be helpful.

[Nathan West]

See https://github.com/deepsig/libsigmf/blob/master/examples/example_reading_sigmf_file.cpp

Compile that and run it with an argument that is the path to the example file. It will read in the file to a SigMF record, convert it back to a json object, and print that.